To reduce the risk of kickback injury use
STIHL reduced kickback bar and STIHL
PMC3, PD3 (3/8" Picco) or RMC3 (0.325“)
chain depending on sprocket pitch or other
available low kickback components.
Advertencia!
Para reducir el riesgo de lesionarse como
resultado de un culatazo, utilice la barra de
contragolpe reducido y la cadena PMC3, PD3
(Picco de 3/8 pulg) o RMC3 (0,325 pulg) de
STIHL, dependiendo de la rueda dentada
usada y de otros componentes reductores de
contragolpe.
Read and follow all safety precautions in
Instruction Manual – improper use can cause
serious or fatal injury.
Lea y siga todas las precauciones de
seguridad dadas en el manual de
instrucciones – el uso incorrecto puede causar
lesiones graves o mortales.
Instruction Manual
1 - 67
Manual de
instrucciones
69 - 142
Contents
English
Guide to Using this Manual2
Safety Precautions and Working
Techniques3
Cutting Attachment24
Mounting the Bar and Chain (side
chain tensioner)24
Mounting the Bar and Chain (front
chain tensioner)25
Mounting the Bar and Chain (quick
Original Instruction ManualPrinted on chlorine-free paper
chain tensioner)26
Tensioning the Saw Chain (side
chain tensioner)28
Tensioning the Saw Chain (front
chain tensioner)28
Tensioning the Saw Chain (quick
Printing inks contain vegetable oils, paper can be recycled.
Winter Operation34
Starting / Stopping the Engine35
Operating Instructions39
Taking Care of the Guide Bar40
Air Filter System41
Cleaning the Air Filter41
Engine Management42
Adjusting the Carburetor42
Spark Plug44
Engine Running Behavior45
Replacing the Starter Rope and
Rewind Spring45
Storing the Machine49
Checking and Replacing the Chain
Sprocket49
Maintaining and Sharpening the
Saw Chain50
Inspections and Maintenance by
Dealer54
Maintenance and Care55
Main Parts57
Specifications59
Special Accessories61
Ordering Spare Parts61
Maintenance and Repairs62
Allocation of STIHL Incorporated
Warranty Declarations62
STIHL Incorporated Federal
Emission Control Warranty
Statement62
STIHL Incorporated California
Exhaust and Evaporative
Emissions Control Warranty
Statement64
Trademarks66
Allow only persons who fully understand
this manual to operate your chain saw.
To receive maximum performance and
satisfaction from your STIHL chain saw,
it is important that you read, understand
and follow the safety precautions and
the operating and maintenance
instructions in chapter "Safety
Precautions and Working Techniques"
before using your chain saw. For further
information you can go to
www.stihlusa.com.
Contact your STIHL dealer or the STIHL
distributor for your area if you do not
understand any of the instructions in this
manual.
Warning!
Because a chain saw is a high-speed
wood-cutting tool, some special safety
precautions must be observed as with
any other power saw to reduce the risk
of personal injury. Careless or improper
use may cause serious or even fatal
injury.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
1
English
Guide to Using this Manual
Pictograms
The meanings of the pictograms
attached to or embossed on the
machine are explained in this manual.
Depending on the model concerned, the
following pictograms may be on your
machine.
Fuel tank; fuel mixture of
gasoline and engine oil
Chain oil tank; chain oil
Engaging and disengaging the STIHL Quickstop
chain brake
Direction of chain rotation
Ematic; chain oil quantity
control
Tension the chain
Intake air preheating for
winter operation
Intake air for summer
operation
Handle heating
Operate decompression
valve
Operate manual fuel
pump
Symbols in Text
Many operating and safety instructions
are supported by illustrations.
The individual steps or procedures
described in the manual may be marked
in different ways:
NA bullet marks a step or procedure.
A description of a step or procedure that
refers directly to an illustration may
contain item numbers that appear in the
illustration. Example:
NLoosen the screw (1).
NLever (2) ...
In addition to the operating instructions,
this manual may contain paragraphs
that require your special attention. Such
paragraphs are marked with the
symbols and signal words described
below:
Danger!
Indicates an imminent risk of severe or
fatal injury.
Warning!
Indicates a hazardous situation which, if
not avoided, could result in severe or
fatal injury.
Caution!
Indicates a risk of property damage,
including damage to the machine or its
individual components.
Engineering Improvements
STIHL’s philosophy is to continually
improve all of its products. As a result,
engineering changes and improvements
are made from time to time. Therefore,
some changes, modifications and
improvements may not be covered in
this manual. If the operating
characteristics or the appearance of
your machine differs from those
described in this manual, please contact
your STIHL dealer for assistance.
2
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
Safety Precautions and
Working Techniques
Because a chain saw is a
high-speed, fast-cutting
power tool, special safety
precautions must be
observed to reduce the
risk of personal injury.
It is important that you
read, fully understand
and observe the following
safety precautions and
warnings. Read the
instruction manual and
the safety instructions
periodically. Careless or
improper use may cause
serious or fatal injury.
Warning!
Reactive forces, including kickback, can
be dangerous. Pay special attention to
the section on reactive forces.
Have your STIHL dealer show you how
to operate your power tool. All safety
precautions that are generally observed
when working with an ax or a hand saw
also apply to the operation of chain
saws. Observe all applicable federal,
state and local safety regulations,
standards and ordinances. When using
a chain saw for logging purposes, for
instance, refer to the OSHA regulations
for "logging operations" at 29 Code of
Federal Regulations 1910.266.
Warning!
Do not lend or rent your power tool without the instruction manual. Be sure that
anyone using it understands the information contained in this manual.
Warning!
The use of this machine may be hazardous.The saw chain has many sharp
cutters. If the cutters contact your flesh,
they will cut you, even if the chain is not
moving.
Use your chain saw only for cutting
wooden objects.
Warning!
Do not use it for other purposes, since
misuse may result in personal injury or
property damage, including damage to
the machine
Warning!
Minors should never be allowed to use
this power tool. Bystanders, especially
children, and animals should not be
allowed in the area where it is in use.
Warning!
To reduce the risk of injury to bystanders and damage to property, never let
your power tool run unattended. When it
is not in use (e.g. during a work break),
shut it off and make sure that unauthorized persons do not use it.
Most of these safety precautions and
warnings apply to the use of all STIHL
chain saws. Different models may have
different parts and controls. See the
appropriate section of your instruction
manual for a description of the controls
and the function of the parts of your
model.
Safe use of a chain saw involves
1the operator
2the power tool
3the use of the power tool.
THE OPERATOR
Physical Condition
You must be in good physical condition
and mental health and not under the
influence of any substance (drugs,
alcohol, etc.) which might impair vision,
dexterity or judgment. Do not operate
this machine when you are fatigued.
Warning!
Be alert – if you get tired, take a break.
Tiredness may result in loss of control.
Working with any power tool can be
strenuous. If you have any condition
that might be aggravated by strenuous
work, check with your doctor before
operating this machine.
Warning!
Prolonged use of a power tool (or other
machines) exposing the operator to
vibrations may produce whitefinger disease (Raynaud's phenomenon) or
carpal tunnel syndrome.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
3
English
These conditions reduce the hand's
ability to feel and regulate temperature,
produce numbness and burning
sensations and may cause nerve and
circulation damage and tissue necrosis.
All factors which contribute to whitefinger disease are not known, but cold
weather, smoking and diseases or
physical conditions that affect blood
vessels and blood transport, as well as
high vibration levels and long periods of
exposure to vibration are mentioned as
factors in the development of whitefinger
disease. In order to reduce the risk of
whitefinger disease and carpal tunnel
syndrome, please note the following:
–Most STIHL power tools are
available with an anti-vibration
("AV") system designed to reduce
the transmission of vibrations
created by the machine to the
operator's hands. An AV system is
recommended for those persons
using power tools on a regular or
sustained basis.
–Wear gloves and keep your hands
warm. Heated handles, which are
available on some STIHL
powerheads, are recommended for
cold weather use.
–Keep the AV system well
maintained. A power tool with loose
components or with damaged or
worn AV elements will tend to have
higher vibration levels. Keep the
saw chain sharp. A dull chain will
increase cutting time, and pressing
a dull chain through wood will
increase the vibrations transmitted
to your hands.
–Maintain a firm grip at all times, but
do not squeeze the handles with
constant, excessive pressure. Take
frequent breaks.
All the above-mentioned precautions do
not guarantee that you will not sustain
whitefinger disease or carpal tunnel
syndrome. Therefore, continual and
regular users should closely monitor the
condition of their hands and fingers. If
any of the above symptoms appear,
seek medical advice immediately.
Warning!
The ignition system of the STIHL unit
produces an electromagnetic field of a
very low intensity. This field may interfere with some pacemakers. To reduce
the risk of serious or fatal injury, persons
with a pacemaker should consult their
physician and the pacemaker manufacturer before operating this tool.
Proper Clothing
Warning!
To reduce the risk of injury, the operator
should wear proper protective apparel.
Clothing must be sturdy
and snug-fitting, but allow
complete freedom of
movement. Wear long
pants made of heavy
material to help protect
your legs from contact
with branches or brush.
To reduce the risk of cut
injuries, wear pants or
chaps that contain pads
of cut retardant material.
Avoid loose-fitting jackets, scarfs, neckties,
jewelry, flared or cuffed
pants, unconfined long
hair or anything that
could become caught on
branches, brush or the
moving parts of the unit.
Secure hair so it is above
shoulder level.
Good footing is very
important. Wear sturdy
boots with nonslip soles.
Steel-toed safety boots
are recommended.
Wear an approved safety
hard hat to reduce the
risk of injury to your head.
Chain saw noise may
damage your hearing.
Wear sound barriers (ear
plugs or ear mufflers) to
help protect your hearing.
Continual and regular
users should have their
hearing checked
regularly.
4
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
001BA115 KN
Be particularly alert and cautious when
wearing hearing protection because
your ability to hear warnings (shouts,
alarms, etc.) is restricted.
Never operate your power tool unless
wearing goggles or properly fitted
protective glasses with adequate top
and side protection complying with ANSI
Z 87.1 (or your applicable national
standard). To reduce the risk of injury to
your face STIHL recommends that you
also wear a face shield or face screen
over your goggles or protective glasses.
Always wear gloves
when handling the
machine and the cutting
tool. Heavy-duty, nonslip
gloves improve your grip
and help to protect your
hands.
THE POWER TOOL
For illustrations and definitions of the
power tool parts see the chapter on
"Main Parts."
Warning!
Never modify this power tool in any way.
Only attachments supplied by STIHL or
expressly approved by STIHL for use
with the specific STIHL model are
authorized. Although certain unauthorized attachments are useable with
STIHL power tools, their use may, in
fact, be extremely dangerous.
If this tool is subjected to unusually high
loads for which it was not designed (e.g.
heavy impact or a fall), always check
that it is in good condition before
continuing work. Check in particular that
the fuel system is tight (no leaks) and
that the controls and safety devices are
working properly. Do not continue
operating this machine if it is damaged.
In case of doubt, have it checked by your
STIHL servicing dealer.
THE USE OF THE POWER TOOL
Transporting the Power Tool
Warning!
To reduce the risk of injury from saw
chain contact, never carry or transport
your power tool with the saw chain moving. Always engage the chain brake
when taking more than a few steps.
Warning!
Always switch off the engine, and fit the
chain guard (scabbard) over the chain
and guide bar before transporting the
power tool over longer distances. When
transporting it in a vehicle, properly
secure it to prevent turnover, fuel spillage and damage to the unit.
It may be carried only in a horizontal
position. Grip the front handle in a
manner that the machine is balanced
horizontally. Keep the hot muffler away
from your body and the cutting
attachment behind you.
Fuel
Your STIHL power tool uses an oilgasoline mixture for fuel (see the
chapter on "Fuel" of your instruction
manual).
Warning!
Gasoline is an extremely
flammable fuel. If spilled
and ignited by a spark or
other ignition source, it
can cause fire and seri-
ous burn injury or
property damage. Use extreme caution
when handling gasoline or fuel mix. Do
not smoke or bring any fire or flame near
the fuel or the power tool. Note that
combustible fuel vapor may escape
from the fuel system.
Fueling Instructions
Warning!
Fuel your power tool in well-ventilated
areas, outdoors. Always shut off the
engine and allow it to cool before refueling. Gasoline vapor pressure may
build up inside the fuel tank depending
on the fuel used, the weather conditions
and the tank venting system.
In order to reduce the risk of burns and
other personal injury from escaping gas
vapor and fumes, remove the fuel filler
cap on your power tool carefully so as to
allow any pressure build-up in the tank
to release slowly. Never remove the fuel
filler cap while the engine is running.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
5
English
001BA220 KN
001BA227 KN
001BA226 KN
Select bare ground for fueling and move
at least 10 feet (3 m) from the fueling
spot before starting the engine. Wipe off
any spilled fuel before starting your
machine.
Warning!
Check for fuel leakage
while refueling and during operation. If fuel
leakage is found, do not
start or run the engine
until the leak is fixed and
any spilled fuel has been wiped away.
Take care not to get fuel on your clothing. If this happens, change your
clothing immediately.
Different models may be equipped with
different fuel caps.
Toolless cap with grip
Warning!
In order to reduce the risk of fuel spillage and fire from an improperly
tightened fuel cap, correctly position
and tighten the fuel cap in the fuel tank
opening.
marks on the grip of the cap and on the
fuel tank opening lining up. Using the
grip, press the cap down firmly while
turning it clockwise as far as it will go
(approx. 1/4 turn).
Fold the grip flush with
the top of the cap. Grip
the cap and check for
tightness. If the grip does
not lie completely flush
with the cap and the
detent on the grip does
not fit in the corresponding recess in the filler
opening, or if the cap is
loose in the filler opening,
the cap is not properly
seated and tightened and
you must repeat the
above steps.
Misaligned, damaged or broken cap
NIf the cap does not drop fully into the
opening when the positioning marks
line up and/or if the cap does not
tighten properly when twisted, the
base of the cap may be prematurely
rotated (in relation to the top) to the
closed position. Such misalignment
can result from handling, cleaning
or an improper attempt at
tightening.
Left:Base of cap in closed posi-
tion (with open space)
Right:Base of cap correctly posi-
tioned for installation
NTo return the cap to the open
position for installation, turn the cap
(with the grip up) until it drops fully
into the tank opening. Next, twist the
cap counterclockwise as far as it will
go (approx. 1/4 turn) – this will twist
the base of the cap into the correct
position. Then, twist the cap
clockwise, closing it normally.
NIf your cap still does not tighten
properly, it may be damaged or
broken; immediately stop use of the
unit and take it to your authorized
STIHL dealer for repair.
To do this with this STIHL cap, raise the
grip on the top of the cap until it is upright
at a 90° angle. Insert the cap in the fuel
tank opening with the raised positioning
6
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
Screw Cap
Warning!
Unit vibrations can
cause an improperly
tightened fuel filler cap to
loosen or come off and
spill quantities of fuel. In
order to reduce the risk
of fuel spillage and fire, tighten the fuel
filler cap by hand as securely as
possible.
The screwdriver end of the STIHL
combination wrench or other similar tool
can be used as an aid in tightening
slotted fuel filler caps.
See also the "Fueling" chapter in your
Instruction Manual for additional
information.
Before Starting
Take off the chain guard (scabbard) and
inspect the saw for proper condition and
operation. (See the maintenance chart
near the end of the instruction manual.)
Warning!
Never operate your power tool if it is
damaged, improperly adjusted or maintained, or not completely or securely
assembled.
Warning!
Check that the spark plug boot is
securely mounted on the spark plug – a
loose boot may cause arcing that could
ignite combustible fumes and cause a
fire.
For proper assembly of the bar and
chain follow the procedure described in
the chapter "Mounting the Bar and
Chain" of your instruction manual.
STIHL Oilomatic chain, guide bar and
sprocket must match each other in
gauge and pitch. Before replacing any
bar and chain, see the chapter entitled
"Specifications" in the instruction
manual and the section "Kickback" and
the "ANSI B 175.1-2000 chain saw
chain saw kickback standard" below.
English
Warning!
Proper tension of the chain is extremely
important. In order to avoid improper
setting, the tensioning procedure must
be followed as described in your manual. Always make sure the hexagonal
nut(s) for the sprocket cover is (are)
tightened securely after tensioning the
chain in order to secure the bar. Never
start the saw with the sprocket cover
loose. Check chain tension once more
after having tightened the nut(s) and
thereafter at regular intervals (whenever
the saw is shut off). If the chain
becomes loose while cutting, shut off
the engine and then tighten. Never try to
adjust the chain while the engine is
running!
Keep the handles clean and dry at all
times; it is particularly important to keep
them free of moisture, pitch, oil, fuel mix,
grease or resin in order for you to
maintain a firm grip and properly control
your power tool.
Starting
Warning!
Always check your power tool for proper
condition and operation before starting,
particularly the throttle trigger, throttle
trigger lockout, stop switch and cutting
tool. The throttle trigger must move
freely and always spring back to the idle
position. Never attempt to modify the
controls or safety devices.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
Warning!
To reduce the risk of fire and burn injuries, start the engine at least 10 feet
(3 m) from the fueling spot, outdoors
only.
Start and operate your saw without
assistance. For specific starting
instructions, see the appropriate section
of the instruction manual. Proper starting
methods reduce the risk of injury.
7
English
001BA113 KN
001BA114 KN
Warning!
To reduce the risk of injury from chain
contact and / or reactive forces, the
chain brake must be engaged when
starting the saw.
Warning!
Do not drop start. This method is very
dangerous because you may lose control of the saw.
There are two recommended methods
for starting your chain saw.
With the first recommended method,
the chain saw is started on the ground.
Make sure the chain brake is engaged
(see "Chain Brake" chapter in your
instruction manual) and place the chain
saw on firm ground or other solid surface
in an open area. Maintain good balance
and secure footing.
Grip the front handlebar of the saw firmly
with your left hand and press down. For
saws with a rear handle level with the
ground, put the toe of your right foot into
the rear handle and press down. With
your right hand pull out the starter grip
slowly until you feel a definite resistance
and then give it a brisk, strong pull.
The second recommended method for
starting your chain saw allows you to
start the saw without placing it on the
ground. Make sure the chain brake is
engaged, grip the front handle of the
chain saw firmly with your left hand.
Keep your arm on the front handle in a
locked (straight) position. Hold the rear
handle of the saw tightly between your
legs just above the knees. Maintain
good balance and secure footing. Pull
the starting grip slowly with your right
hand until you feel a definite resistance
and then give it a brisk, strong pull.
Warning!
Be sure that the guide bar and chain are
clear of you and all other obstructions
and objects, including the ground. When
the engine is started, the engine speed
with the starting throttle lock engaged
will be fast enough for the clutch to
engage the sprocket and, if the chain
brake is not activated, turn the chain. If
the upper quadrant of the tip of the bar
touches any object, it may cause kickback to occur (see section on reactive
forces). To reduce this risk, always
engage the chain brake before starting.
Never attempt to start the chain saw
when the guide bar is in a cut or kerf.
As soon as the engine is running,
immediately blip the throttle trigger,
which will disengage the starting throttle
lock and allow the engine to settle down
to idle.
Warning!
When you pull the starter grip, do not
wrap the starter rope around your hand.
Do not let the grip snap back, but guide
the starter rope to rewind it properly.
Failure to follow this procedure may
result in injury to your hand or fingers
and may damage the starter
mechanism.
Important Adjustments
Warning!
To reduce the risk of personal injury
from loss of control and / or contact with
the running cutting tool, do not use your
unit with incorrect idle adjustment. At
correct idle speed, the cutting tool
should not move. For directions on how
to adjust idle speed, see the appropriate
section of your instruction manual.
If you cannot set the correct idle speed,
have your STIHL dealer check your
power tool and make proper
adjustments and repairs.
During Operation
Holding and Controlling the Power
Tool
Always hold the unit firmly with both
hands on the handles while you are
working. Wrap your fingers and thumbs
around the handles.
8
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
Your right hand should grip the rear
001BA087 LÄ
001BA031 KN
handle. This also applies to left-handers.
With your hands in this position, you can
best oppose and absorb the push, pull
and kickback forces of your saw without
losing control (see section on reactive
forces).
Warning!
To reduce the risk
of serious or fatal
injury to the operator or bystanders
from loss of control, never use the saw with one hand. It
is more difficult for you to control reactive forces and to prevent the bar and
chain from skating or bouncing along
the limb or log. Even for those compact
saws designed for use in confined
spaces, one-handed operation is dangerous because the operator may lose
control.
Warning!
To reduce the risk of cut injuries, keep
hands and feet away from the cutting
tool. Never touch a moving cutting tool
with your hand or any other part of your
body.
Warning!
Keep proper footing and balance at all
times. Special care must be taken in
slippery conditions (wet ground, snow)
and in difficult, overgrown terrain. Watch
for hidden obstacles such as tree
stumps, roots, rocks, holes and ditches
to avoid stumbling. There is increased
danger of slipping on freshly debarked
logs. For better footing, clear away
fallen branches, scrub and cuttings. Be
extremely cautious when working on
slopes or uneven ground.
Warning!
Take extreme care in wet and freezing
weather (rain, snow, ice). Put off the
work when the weather is windy, stormy
or rainfall is heavy.
English
Warning!
To reduce the risk of injury from loss of
control, never work on a ladder or any
other insecure support. Never hold the
machine above shoulder height. Do not
overreach.
Warning!
Never work in a tree unless you have
received specific, professional training
for such work, are properly secured
(such as tackle and harness system or a
lift bucket), have both hands free for
operating the chain saw in a cramped
environment and have taken proper precautions to avoid injury from falling
limbs or branches.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
9
English
001BA082 KN
Position the chain saw in such a way
that your body is clear of the cutting
attachment whenever the engine is
running. Stand to the left of cut while
bucking.
Never put pressure on the saw when
reaching the end of a cut. The pressure
may cause the bar and rotating chain to
pop out of the cut or kerf, go out of
control and strike the operator or some
other object. If the rotating chain strikes
some other object, a reactive force may
cause the moving chain to strike the
operator.
Working Conditions
Operate and start your power tool only
outdoors in a well ventilated area.
Operate it under good visibility and
daylight conditions only. Work carefully.
Warning!
Your chain saw is a one-person
machine. Do not allow other persons in
the general work area, even when starting. Stop the engine immediately if you
are approached.
Warning!
Even though bystanders should be kept
away from the running saw, never work
alone. Keep within calling distance of
others in case help is needed.
Warning!
As soon as the engine is
running, this product
generates toxic exhaust
fumes containing chemicals, such as unburned
hydrocarbons (including
benzene) and carbon monoxide, that
are known to cause respiratory problems, cancer, birth defects, or other
reproductive harm. Some of the gases
(e.g. carbon monoxide) may be colorless and odorless. To reduce the risk of
serious or fatal injury / illness from inhaling toxic fumes, never run the machine
indoors or in poorly ventilated locations.
If exhaust fumes become concentrated
due to insufficient ventilation, clear
obstructions from work area to permit
proper ventilation before proceeding
and / or take frequent breaks to allow
fumes to dissipate before they become
concentrated.
Warning!
Inhalation of certain dusts, especially
organic dusts such as mold or pollen,
can cause susceptible persons to have
an allergic or asthmatic reaction. Substantial or repeated inhalation of dust
and other airborne contaminants, in particular those with a smaller particle size,
may cause respiratory or other illnesses. This includes wood dust,
especially from hardwoods, but also
from some softwoods such as Western
Red Cedar. Control dust at the source
where possible. Use good work practices, such as always cutting with a
properly sharpened chain (which produces wood chips rather than fine dust)
and operating the unit so that the wind
or operating process directs any dust
raised by the power tool away from the
operator. Follow the recommendations
of EPA / OSHA / NIOSH and occupational and trade associations with
respect to dust ("particulate matter").
When the inhalation of dust cannot be
substantially controlled, i.e., kept at or
near the ambient (background) level,
the operator and any bystanders should
wear a respirator approved by NIOSH /
MSHA for the type of dust encountered.
10
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
Warning!
Breathing asbestos dust is dangerous
and can cause severe or fatal injury,
respiratory illness or cancer. The use
and disposal of asbestos-containing
products have been strictly regulated by
OSHA and the Environmental Protection Agency. If you have any reason to
believe that you might be cutting asbestos, immediately contact your employer
or a local OSHA representative.
Operating Instructions
Warning!
Do not operate your power tool using
the starting throttle lock, as you do not
have control of the engine speed.
In the event of an emergency, switch off
the engine immediately – move the slide
control / stop switch to 0 or STOP.
Warning!
Always stop the engine before putting a
chain saw down.
Warning!
The saw chain continues to move for a
short period after the throttle trigger is
released (flywheel effect).
Accelerating the engine while the saw
chain is blocked increases the load and
will cause the clutch to slip continuously.
This may occur if the throttle is
depressed for more than a few seconds
when the chain is pinched in the cut or
the chain brake is engaged. It can result
in overheating and damage to important
components (e.g. clutch, polymer
housing components) – which can then
increase the risk of injury, e.g., from the
saw chain moving while the engine is
idling.
Warning!
Your chain saw is equipped with a chain
catcher. It is designed to reduce the risk
of personal injury in the event of a
thrown or broken chain. From time to
time, the catcher may be damaged or
removed. To reduce the risk of personal
injury, do not operate a chain saw with a
damaged or missing chain catcher.
Warning!
Inspect antivibration elements periodically. Replace damaged, broken or
excessively worn antivibration elements
immediately, since they may result in
loss of control of the saw. A "sponginess" in the feel of the saw, increased
vibration or increased "bottoming" during normal operation may indicate
damage, breakage or excessive wear.
Antivibration elements should always
be replaced in sets. If you have any
questions as to whether the antivibration elements should be replaced,
consult your STIHL servicing dealer.
Warning!
Your saw is not designed for prying or
shoveling away limbs, roots or other
objects. Such use could damage the
cutting attachment or AV system.
English
Warning!
When sawing, make sure that the saw
chain does not touch any foreign materials such as rocks, fences, nails and the
like. Such objects may be flung off,
damage the saw chain or cause the saw
to kickback.
Warning!
Never modify your muffler. Any modification could cause an increase in heat
radiation, sparks or sound level, thereby
increasing the risk of fire, burn injury or
hearing loss. You may also permanently
damage the engine. Have your muffler
serviced and repaired by your STIHL
servicing dealer only.
Warning!
The muffler and other parts of the
engine (e.g. fins of the cylinder, spark
plug) become hot during operation and
remain hot for a while after stopping the
engine. To reduce risk of burns, do not
touch the muffler and other parts while
they are hot. Keep the area around the
muffler clean. Remove excess lubricant
and all debris such as pine needles,
branches or leaves. Let the engine cool
down sitting on concrete, metal, bare
ground or solid wood (e.g. the trunk of a
felled tree) away from any combustible
substances.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
11
English
001BA093 LÄ
001BA035 KN
Warning!
An improperly mounted or damaged cylinder housing or a damaged/deformed
muffler shell may interfere with the cooling process of the muffler. To reduce the
risk of fire or burn injury, do not continue
work with a damaged or improperly
mounted cylinder housing or a damaged/deformed muffler shell.
Your muffler is furnished with a spark
arresting screen designed to reduce the
risk of fire from the emission of hot
particles. Never operate your unit with a
missing or damaged spark arresting
screen. If your gas/oil mix ratio is correct
(i.e., not too rich), this screen will
normally stay clean as a result of the
heat from the muffler and need no
service or maintenance. If you
experience loss of performance and you
suspect a clogged screen, have your
muffler maintained by a STIHL servicing
dealer. Some state or federal laws or
regulations may require a properly
maintained spark arrestor for certain
uses. See the "Maintenance, Repair and
Storing" section of these Safety
Precautions. Remember that the risk of
a brush or forest fire is greater in hot or
dry conditions.
Warning!
Some STIHL power tools
are equipped with a catalytic converter, which is
designed to reduce the
exhaust emissions of the
engine by a chemical
process in the muffler. Due to this process, the muffler does not cool down as
rapidly as conventional mufflers when
the engine returns to idle or is shut off.
To reduce the risk of fire and burn injuries when using a catalytic converter,
always set your power tool down in the
upright position and never locate it
where the muffler is near dry brush,
grass, wood chips or other combustible
materials while it is still hot.
Reactive Forces including Kickback
Warning!
Reactive forces may occur any time the
chain is rotating. Reactive forces can
cause serious personal injury.
of control, which, in turn, may cause
serious or fatal injury. An understanding
of the causes of these reactive forces
may help you avoid the element of
surprise and loss of control. Sudden
surprise contributes to accidents.
The most common reactive forces are:
–kickback,
–pushback,
–pull-in.
Kickback:
Kickback may occur
when the moving saw
chain near the upper
quadrant of the bar nose
contacts a solid object or
is pinched.
12
The powerful force used to cut wood can
be reversed and work against the
operator. If the rotating chain is suddenly
stopped by contact with any solid object
such as a log or branch or is pinched, the
reactive forces may occur instantly.
These reactive forces may result in loss
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
The reaction of the cutting force of the
chain causes a rotational force on the
chain saw in the direction opposite to the
chain movement. This may fling the bar
English
up and back in a lightning fast reaction in
an uncontrolled arc mainly in the plane
of the bar. Under some cutting
circumstances the bar moves towards
the operator, who may suffer severe or
fatal injury.
Kickback may occur, for example, when
the chain near the upper quadrant of the
bar nose contacts the wood or is
pinched during limbing or when it is
incorrectly used to begin a plunge or
boring cut.
The greater the force of the kickback
reaction, the more difficult it becomes for
the operator to control the saw. Many
factors influence the occurrence and
force of the kickback reaction. These
include chain speed, the speed at which
the bar and chain contact the object, the
angle of contact, the condition of the
chain and other factors.
The type of bar and saw chain you use
is an important factor in the occurrence
and force of the kickback reaction. Some
STIHL bar and chain types are designed
to reduce kickback forces. STIHL
recommends the use of reduced
kickback bars and low kickback chains.
ANSI B 175.1-2000 chain saw
kickback standard
§ 5.11 of ANSI standard B 175.1-2000,
sets certain performance and design
criteria related to chain saw kickback.
To comply with § 5.11 of ANSI
B 175.1-2000:
a) Saws with a displacement of less
than 3.8 cubic inches (62 cm³)
–must, in their original condition,
meet a 45° computer derived
kickback angle when equipped with
certain cutting attachments,
–and must be equipped with at least
two devices to reduce the risk of
kickback injury, such as a chain
brake, low kickback chain, reduced
kickback bar, etc.
b) Saws with a displacement of
3.8 cubic inches (62 cm³) and
above
–must be equipped with at least one
device designed to reduce the risk
of kickback injury, such as a chain
brake, low kickback chain, reduced
kickback bar, etc.
The computer derived angles for saws
below 3.8 cubic inches (62 cm³)
displacement are measured by applying
a computer program to test results from
a kickback test machine.
Warning!
The computer derived angles of § 5.11
of ANSI B 175.1-2000 may bear no relationship to actual kickback bar rotation
angles that may occur in real life cutting
situations.
In addition, features designed to reduce
kickback injuries may lose some of their
effectiveness when they are no longer in
their original condition, especially if they
have been improperly maintained.
Compliance with § 5.11 of ANSI
B 175.1-2000 does not automatically
mean that in a real life kickback the bar
and chain will rotate at most 45°.
Warning!
In order for powerheads below 3.8 cubic
inches (62 cm³) displacement to comply
with the computed kickback angle
requirements of § 5.11 of ANSI
B 175.1-2000 use only the following cutting attachments:
–bar and chain combinations listed
as complying in the "Specifications"
section of the instruction manual or
–other replacement bar and chain
combinations marked in
accordance with the standard for
use on the powerhead or
–replacement chain designated "low
kickback saw chain."
See the section on "Low kickback saw
chain and reduced kickback bars."
Devices for Reducing the Risk of
Kickback Injury
STIHL recommends the use of the
STIHL Quickstop chain brake on your
powerhead with green labeled reduced
kickback bars and low kickback chains.
Warning!
To reduce the risk of injury, never use a
saw if the chain brake does not function
properly. Take the saw to your local
STIHL servicing dealer. Do not use the
saw until the problem has been rectified.
STIHL Quickstop Chain Brake
STIHL has developed a chain stopping
system designed to reduce the risk of
injury in certain kickback situations. It is
called a Quickstop chain brake.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
13
English
001BA174 KN
All STIHL chain saws are equipped with
a Quickstop chain brake which can be
activated by inertia. If the forces of an
occurring kickback are sufficiently high,
the hand guard is accelerated towards
the bar nose even without hand contact.
See the chapter entitled "Chain Brake"
of your instruction manual.
Warning!
Never operate your chain saw without a
front hand guard. In a kickback situation
this guard helps protect your left hand
and other parts of your body. In addition,
removal of the hand guard on a saw
equipped with a Quickstop chain brake
will deactivate the chain brake.
Warning!
No Quickstop or other chain brake
device prevents kickback. These
devices are designed to reduce the risk
of kickback injury, if activated, in certain
kickback situations. In order for the
Quickstop to reduce the risk of kickback
injury, it must be properly maintained
and in good working order. See the
chapter of your instruction manual entitled "Chain Brake" and the section
"Maintenance, Repair and Storing" at
the end of these Safety Precautions. In
addition, there must be enough distance
between the bar and the operator to
ensure that the Quickstop has sufficient
time to activate and stop the chain
before potential contact with the
operator.
Warning!
An improperly maintained chain brake
may increase the time needed to stop
the chain after activation, or may not
activate at all.
Warning!
Never run the chain saw above idle
speed for more than 3 seconds when
the chain brake is engaged or when the
chain is pinched or otherwise caught in
the cut. Clutch slippage can cause
excessive heat, leading to severe damage of the motor housing, clutch and
oiler component and may interfere with
the operation of the chain brake. If
clutch slippage in excess of 3 seconds
has occurred, allow the motor housing
to cool before proceeding and check the
operation of your chain brake as
described in the chapter entitled "Chain
Brake" of your instruction manual. Also
make sure that the chain is not turning
at idle speed (see above at "Important
Adjustments").
Low Kickback Saw Chain and
Reduced Kickback Bars
STIHL offers a variety of bars and
chains. STIHL reduced kickback bars
and low kickback chains are designed to
reduce the risk of kickback injury. Other
chains are designed to obtain higher
cutting efficiency or sharpening ease but
may result in higher kickback tendency.
STIHL has developed a color code
system to help you identify the STIHL
reduced kickback bars and low kickback
chains. Cutting attachments with green
warning decals or green labels on the
packaging are designed to reduce the
risk of kickback injury. The matching of
green decaled powerheads under
3.8 cubic inches (62 cm³) displacement
with green labeled bars and green
labeled chains gives compliance with
the computed kickback angle
requirements of ANSI B 175.1-2000
14
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
when the products are in their original
condition. Products with yellow decals or
labels are for users with extraordinary
cutting needs and experience and
specialized training for dealing with
kickback.
STIHL recommends the use of its
green labeled reduced kickback bars,
green labeled low kickback chains
and a STIHL Quickstop chain brake
for both experienced and
inexperienced chain saw users.
Please ask your STIHL dealer to
properly match your powerhead with the
appropriate bar / chain combination to
reduce the risk of kickback injury. Green
labeled bars and chains are
recommended for all powerheads.
Warning!
Use of other, non-listed bar / chain combinations may increase kickback forces
and the risk of kickback injury. New bar
/ chain combinations may be developed
after publication of this literature, which
will, in combination with certain powerheads, comply with § 5.11 of ANSI
B 175.1-2000. Check with your STIHL
dealer for such combinations.
Warning!
Reduced kickback bars and low kickback chains do not prevent kickback,
but they are designed to reduce the risk
of kickback injury. They are available
from your STIHL dealer.
Warning!
Even if your saw is equipped with a
Quickstop, a reduced kickback bar and
/ or low kickback chain, this does not
eliminate the risk of injury by kickback.
Therefore, always observe all safety
precautions to avoid kickback
situations.
Low Kickback Chain
Some types of saw chain have specially
designed components to reduce the
force of nose contact kickback. STIHL
has developed low kickback chain for
your powerhead.
"Low kickback saw chain" is a chain
which has met the kickback
performance requirements of § 5.11.2.4
of ANSI B 175.1-2000 (GasolinePowered Chain Saws–Safety
Requirements) when tested in its
original condition on a selected
representative sample of chain saws
below 3.8 cubic inches (62 cm³)
displacement specified in ANSI
B 175.1-2000.
Warning!
There are potential powerhead and bar
combinations with which low kickback
saw chains can be used which have not
been specifically certified to comply with
the 45° computer derived kickback
angle of § 5.11 of ANSI B 175.1-2000.
Some low kickback chains have not
been tested with all powerhead and bar
combinations.
English
Warning!
A dull or improperly sharpened chain
may reduce or negate the effects of the
design features intended to reduce kickback energy. Improper lowering or
sharpening of the depth gauges or
shaping of the cutters may increase the
chance and the potential energy of a
kickback. Always cut with a properly
sharpened chain.
Reduced Kickback Bars
STIHL green labeled reduced kickback
bars are designed to reduce the risk of
kickback injury when used with STIHL
green labeled low kickback chains.
Warning!
When used with other, more aggressive
chains, these bars may be less effective
in reducing kickback.
Warning!
For a properly balanced saw and in
order to comply with § 5.12.1 of ANSI
B 175.1-2000, use only bar lengths
listed in the specifications chapter of the
instruction manual for your chain saw
powerhead.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
15
English
001BA037 KN
A
001BA038 KN
B
Bow Guides
Warning!
Do not mount a bow guide on any
STIHL chain saw. Any chain saw
equipped with a bow guide is potentially
very dangerous. The risk of kickback is
increased with a bow guide because of
the increased kickback contact area.
Low kickback chain will not significantly
reduce the risk of kickback injury when
used on a bow guide.
To avoid Kickback
The best protection from personal injury
that may result from kickback is to avoid
kickback situations:
1. Hold the chain saw firmly with both
hands and maintain a secure grip.
Don’t let go.
2. Be aware of the location of the guide
bar nose at all times.
3. Never let the nose of the guide bar
contact any object. Do not cut limbs
with the nose of the guide bar. Be
especially careful near wire fences
and when cutting small, tough
limbs, small size brush and saplings
which may easily catch the chain.
4. Don't overreach.
5. Don't cut above shoulder height.
6. Begin cutting and continue at full
throttle.
7. Cut only one log at a time.
8. Use extreme caution when
reentering a previous cut.
9. Do not attempt to plunge cut if you
are not experienced with these
cutting techniques.
10. Be alert for shifting of the log or
other forces that may cause the cut
to close and pinch the chain.
11. Maintain saw chain properly. Cut
with a correctly sharpened, properly
tensioned chain at all times.
12. Stand to the side of the cutting path
of the chain saw.
A = Pull-in
Pull-in occurs when the chain on the
bottom of the bar is suddenly stopped
when it is pinched, caught or encounters
a foreign object in the wood. The
reaction of the chain pulls the saw
forward and may cause the operator to
lose control.
Pull-in frequently occurs when the
bumper spike of the saw is not held
securely against the tree or limb and
when the chain is not rotating at full
speed before it contacts the wood.
Warning!
Use extreme caution when cutting small
size brush and saplings which may easily catch the chain, be whipped towards
you or pull you off balance.
To avoid Pull-in
1. Always start a cut with the chain
rotating at full speed and the
bumper spike in contact with the
wood.
2. The risk of pull-in may also be
reduced by using wedges to open
the kerf or cut.
B = Pushback
Pushback occurs when the chain on the
top of the bar is suddenly stopped when
it is pinched, caught or encounters a
foreign object in the wood. The reaction
of the chain may drive the saw rapidly
straight back toward the operator and
may cause loss of saw control.
Pushback frequently occurs when the
top of the bar is used for cutting.
To avoid Pushback
1. Be alert to forces or situations that
may cause material to pinch the top
of the chain.
2. Do not cut more than one log at a
time.
3. Do not twist the saw when
withdrawing the bar from a plunge
cut or underbuck cut because the
chain can pinch.
16
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
001BA088 LÄ
2
/
1
2
11
/
1
2
B
001BA040 KN
A
45°
45°
B
Cutting Techniques
Felling
Felling is cutting down a tree.
Before felling a tree, consider carefully
all conditions which may affect the
direction of fall.
Warning!
There are a number of factors that may
affect and change the intended direction
of fall, e.g. wind direction and speed,
lean of tree, surrounding trees and
obstacles, sloping ground, one-sided
limb structure, wood structure, decay,
snow load, etc. To reduce the risk of
severe or fatal injury to yourself or others, look for these conditions prior to
beginning the cut, and be alert for a
change in direction while the tree is
falling.
Warning!
Always observe the general condition of
the tree. Inexperienced users should
never attempt to cut trees that are
decayed or rotted inside or that are
leaning or otherwise under tension.
There is an increased risk that such
trees could snap or split while being cut
and cause serious or fatal injury to the
operator or bystanders. Also look for
broken or dead branches which could
vibrate loose and fall on the operator.
When felling on a slope, the operator
should stand on the uphill side if
possible.
Felling Instructions
When felling, maintain a distance of at
least 2 1/2 tree lengths from the nearest
person.
When felling in the vicinity of roads,
railways and power lines, etc., take extra
precautions. Inform the police, utility
company or railway authority before
beginning to cut.
Warning!
The noise of your engine may drown
any warning call.
Escape Path
First clear the tree base and work area
from interfering limbs and brush and
clean its lower portion with an ax.
Then, establish two paths of escape (B)
and remove all obstacles. These paths
should be generally opposite to the
planned direction of the fall of the tree
(A) and about at a 45° angle. Place all
tools and equipment a safe distance
away from the tree, but not on the
escape paths.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
17
English
001BA146 KN
001BA153 KN
001BA143 KN
C
C
Buttress Roots
If the tree has large buttress roots, cut
into the largest buttress vertically first
(horizontally next) and remove the
resulting piece.
Gunning Sight
When making the felling notch, use the
gunning sight on the shroud and housing
to check the desired direction of fall:
Position the saw so that the gunning
sight points exactly in the direction you
want the tree to fall.
Conventional Cut
Felling notch (C) – determines the
direction of the fall
For a conventional cut:
NProperly place felling notch
perpendicular to the line of fall,
close to the ground.
NCut down at approx. 45° angle to a
depth of about 1/5 to 1/4 of the trunk
diameter.
NMake second cut horizontal.
NRemove resulting 45° piece.
Open-face Technique
Felling notch (C) – determines the
direction of the fall
For an open-face cut:
NProperly place felling notch
perpendicular to the line of fall,
close to the ground.
NCut down at approx. 50° angle to a
depth of approx.1/5 to 1/4 of the
trunk diameter.
NMake second cut from below at
approx. 40 degree angle.
NRemove resulting 90° piece.
18
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
001BA150 KN
001BA144 KN
D
D
001BA145 KN
E
E
Making Sapwood Cuts
NFor medium sized or larger trees
make cuts at both sides of the trunk,
at same height as subsequent
felling cut.
NCut to no more than width of guide
bar.
This is especially important in softwood
in summer – it helps prevent sapwood
splintering when the tree falls.
D =Felling Cut
Conventional and open-face technique:
NBegin 1 to 2 inches (2,5 to 5 cm)
higher than center of felling notch.
NCut horizontally towards the felling
notch.
NLeave approx.1/10 of diameter
uncut. This is the hinge.
NDo not cut through the hinge – you
could lose control of the direction of
the fall.
Drive wedges into the felling cut where
necessary to control the fall.
E = Hinge
NHelps control the falling tree.
NDo not cut through the hinge – you
could lose control of the direction of
the fall.
Warning!
If the tip of the bar contacts a wedge, it
may cause kickback. Wedges should be
of wood or plastic – never steel, which
can damage the chain.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
19
English
001BA147 KN
001BA148 KN
1
4
2
Felling Cut for Small Diameter Trees:
Simple Fan Cut
Engage the bumper spikes of the chain
saw directly behind the location of the
intended hinge and pivot the saw around
this point only as far as the hinge. The
bumper spike rolls against the trunk.
Felling Cut for Large Diameter Trees
Warning!
Felling a tree that has a diameter
greater than the length of the guide bar
requires use of either the sectioning felling cut or plunge-cut method. These
methods are extremely dangerous
because they involve the use of the
nose of the guide bar and can result in
kickback. Only properly trained professionals should attempt these
techniques.
Sectioning Method
For the sectioning method make the first
part of the felling cut with the guide bar
fanning in toward the hinge. Then, using
the bumper spike as a pivot, reposition
the saw for the next cut.
Avoid repositioning the saw more than
necessary. When repositioning for the
next cut, keep the guide bar fully
engaged in the kerf to keep the felling
cut straight. If the saw begins to pinch,
insert a wedge to open the cut. On the
last cut, do not cut the hinge.
Plunge-cut Method
Timber having a diameter more than
twice the length of the guide bar requires
the use of the plunge-cut method before
making the felling cut.
First, cut a large, wide felling notch.
Make a plunge cut in the center of the
notch.
20
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
001BA033 KN
The plunge cut is made with the guide
bar nose. Begin the plunge cut by
applying the lower portion of the guide
bar nose to the tree at an angle. Cut until
the depth of the kerf is about the same
as the width of the guide bar. Next, align
the saw in the direction in which the
recess is to be cut.
With the saw at full throttle, insert the
guide bar in the trunk.
Enlarge the plunge cut as shown in the
illustration.
Warning!
There is an extreme danger of kickback at this point. Extra caution must
be taken to maintain control of the
saw. To make the felling cut, follow
the sectioning method described
previously.
If you are inexperienced with a chain
saw, plunge-cutting should not be
attempted. Seek the help of a
professional.
Warning!
In order to reduce the risk of personal
injury, never stand directly behind the
tree when it is about to fall, since part of
the trunk may split and come back
towards the operator (barber-chairing),
or the tree may jump backwards off the
stump. Always keep to the side of the
falling tree. When the tree starts to fall,
withdraw the bar, shut off the engine
and walk away on the preplanned
escape path. Watch out for falling limbs.
Warning!
Be extremely careful with partially fallen
trees which are poorly supported. When
the tree hangs or for some other reason
does not fall completely, set the saw
aside and pull the tree down with a
cable winch, block and tackle or tractor.
If you try to cut it down with your saw,
you may be injured.
Limbing
Limbing is removing the branches from a
fallen tree.
Warning!
There is an extreme danger of kickback
during the limbing operation. Do not
work with the nose of the bar. Be
extremely cautious and avoid contacting the log or other limbs with the nose
of the guide bar.
Do not stand on a log while limbing it –
you may slip or the log may roll.
Start limbing by leaving the lower limbs
to support the log off the ground. When
underbucking freely hanging limbs, a
pinch may result or the limb may fall,
causing loss of control. If a pinch occurs,
stop the engine and remove the saw by
lifting the limb.
Warning!
Be extremely cautious when cutting
limbs or logs under tension (spring
poles). The limbs or logs could spring
back toward the operator and cause
loss of control of the saw and severe or
fatal injury to the operator.
Bucking
Bucking is cutting a log into sections.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
21
English
001BA051 LÄ
1
001BA151 KN
2
1
001BA152 KN
2
Warning!
When bucking, do not stand on the log.
Make sure the log will not roll downhill. If
on a slope, stand on the uphill side of
the log. Watch out for rolling logs.
Cut only one log at a time.
Shattered wood should be cut very
carefully. Sharp slivers of wood may be
caught and flung in the direction of the
operator of the saw.
When cutting small logs, place log
through "V"-shaped supports on top of a
sawhorse. Never permit another person
to hold the log. Never hold the log with
your leg or foot.
Logs under strain:
Risk of pinching! Always start relieving
cut (1) at compression side.Then make
bucking cut (2) at tension side. If the saw
pinches, stop the engine and remove it
from the log.
Only properly trained professionals
should work in an area where the logs,
limbs and roots are tangled. Working in
"blow down" areas is extremely
hazardous. Drag the logs into a clear
area before cutting. Pull out exposed
and cleared logs first.
MAINTENANCE, REPAIR AND
STORING
Maintenance, replacement, or repair
of the emission control devices and
systems may be performed by any
nonroad engine repair establishment
or individual. However, if you make a
warranty claim for a component
which has not been serviced or
maintained properly or if
nonapproved replacement parts were
used, STIHL may deny coverage.
Warning!
Use only identical STIHL replacement
parts for maintenance and repair. Use of
non-STIHL parts may cause serious or
fatal injury.
Strictly follow the maintenance and
repair instructions in the appropriate
section of your instruction manual.
Please refer to the maintenance chart in
this manual.
Warning!
Always stop the engine and make sure
that the cutting tool is stopped before
doing any maintenance or repair work or
cleaning the power tool.
Warning!
Do not attempt any maintenance or
repair work not described in your
instruction manual. Have such work performed by your STIHL servicing dealer
only. For example, if improper tools are
used to remove the flywheel or if an
improper tool is used to hold the flywheel in order to remove the clutch,
structural damage to the flywheel could
occur and could subsequently cause the
flywheel to burst.
Wear gloves when handling or
performing maintenance on saw chains.
22
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
Warning!
Use the specified spark plug and make
sure it and the ignition lead are always
clean and in good condition. Always
press spark plug boot snugly onto spark
plug terminal of the proper size. (Note: If
terminal has detachable SAE adapter
nut, it must be securely attached.) A
loose connection between spark plug
terminal and the ignition wire connector
in the boot may create arcing that could
ignite combustible fumes and cause a
fire.
Warning!
Never test the ignition system with the
spark plug boot removed from the spark
plug or with a removed spark plug, since
uncontained sparking may cause a fire.
Warning!
Do not operate your chain saw if the
muffler is damaged, missing or modified. An improperly maintained muffler
will increase the risk of fire and hearing
loss.
If your muffler was equipped with a
spark-arresting screen to reduce the risk
of fire, never operate your saw if the
screen is missing or damaged.
Remember that the risk of forest fires is
greater in hot or dry weather.
Keep the chain, bar and sprocket clean;
replace worn sprockets or chains. Keep
the chain sharp. You can spot a dull
chain when easy-to-cut wood becomes
hard to cut and burn marks appear on
the wood. Keep the chain at proper
tension.
Tighten all nuts, bolts and screws except
the carburetor adjustment screws after
each use.
Warning!
In order for the chain brake on your
STIHL chain saw to properly perform its
function of reducing the risk of kickback
and other injuries, it must be properly
maintained. Like an automobile brake, a
chain saw chain brake incurs wear each
time it is engaged.
The amount of wear will vary depending
upon usage, conditions under which the
saw is used and other factors. Excessive
wear will reduce the effectiveness of the
chain brake and can render it
inoperable.
For the proper and effective operation of
the chain brake, the brake band and
clutch drum must be kept free of dirt,
grease and other foreign matter which
may reduce friction of the band on the
drum.
For these reasons, each STIHL chain
saw should be returned to trained
personnel such as your STIHL servicing
dealer for periodic inspection and
servicing of the brake system according
to the following schedule:
Heavy usage – every three months,
Moderate usage – twice a year,
Occasional usage – annually.
The chain saw should also be returned
immediately for maintenance whenever
the brake system cannot be thoroughly
cleaned or there is a change in its
operating characteristics.
For any maintenance of the emission
control system please refer to the
maintenance chart and to the limited warranty statement near the end of the
instruction manual.
Do not clean your machine with a
pressure washer. The solid jet of water
may damage parts of the machine.
Store chain saw in a dry place and away
from children. Before storing for longer
than a few days, always empty the fuel
tank (see chapter "Storing the Machine"
in the instruction manual).
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
23
English
001BA191 KN
1
2
3
a
t = a : 2
143BA034 KN
1
2
001BA185 KN
001BA186 KN
143BA003 KN
Cutting Attachment
STIHL is the only manufacturer in the
industry to produce its own chain saws,
guide bars, saw chains and chain
sprockets.
A cutting attachment consists of the saw
chain, guide bar and chain sprocket.
The cutting attachment that comes
standard is designed to exactly match
the chain saw.
–The pitch (t) of the saw chain (1),
chain sprocket and the nose
sprocket of the Rollomatic guide bar
must match.
–The drive link gauge (2) of the saw
chain (1) must match the groove
width of the guide bar (3).
If non-matching components are used,
the cutting attachment may be damaged
beyond repair after a short period of
operation.
Mounting the Bar and
Chain (side chain
tensioner)
Removing the chain sprocket cover
NUnscrew the nuts and take off the
chain sprocket cover.
NTurn the screw (1)
counterclockwise until the tensioner
slide (2) butts against the left end of
the housing slot.
Disengaging the chain brake.
NPull the hand guarad towards the
front handle until there is an audible
click – the chain brake is
disengaged.
Fitting the chain
Wear work gloves to protect your
hands from the sharp cutters.
NFit the chain – start at the bar nose.
24
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
3
1
1
2
4
001BA187 KN
143BA034 KN
1
2
207BA009 KN
001BA186 KN
143BA003 KN
NFit the guide bar over the studs (1) –
the cutting edges on the top of the
bar must point to the right.
NEngage the peg of the tensioner
slide in the locating hole (2) –- place
the chain over sprocket (3) at the
same time.
NTurn the tensioning
screw (4)clockwise until there is
very little chain sag on the
underside of the bar – and the drive
link tangs are engaged in the bar
groove.
NRefit the sprocket cover and screw
on the nuts only fingertight.
NGo to chapter on "Tensioning the
Saw Chain"
Mounting the Bar and
Chain (front chain
tensioner)
Removing the chain sprocket cover
NUnscrew the nut and remove the
chain sprocket cover.
Disengage the chain brake.
NPull the hand guard towards the
front handle until there is an audible
click – the chain brake is
disengaged.
Fitting the chain
NTurn the screw (1)
counterclockwise until the
tensioning nut (2) butts against the
left end of the housing slot.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
Wear work gloves to protect your
hands from the sharp cutters.
NFit the chain – start at the bar nose.
25
English
4
1
1
2
3
207BA010 KN
1
2
3
2310BA013 KN
1
2310BA014 KN
2310BA015 KN
2
1
3
2310BA016 KN
2
2310BA017 KN
Mounting the Bar and
Chain (quick chain
tensioner)
Removing the chain sprocket cover
NFit the guide bar over the studs (1) –
the cutting edges on the top of the
bar must point to the right.
NEngage the peg of the tensioner
slide in the locating hole (2) –- place
the chain over the sprocket (3) at
the same time.
NTurn the tensioning screw (4)
clockwise until there is very little
chain sag on the underside of the
bar – and the drive link tangs are
engaged in the bar groove.
NRefit the sprocket cover and screw
on the nut only fingertight.
NGo to chapter on "Tensioning the
Saw Chain"
NSwing grip (1) into position (until it
engages)
NTurn the wing nut (2) to the left until
it hangs loosely in the chain
sprocket cover (3)
NRemove chain sprocket cover (3)
Mounting the tensioning gear
NRemove screw (2)
NPosition tensioning gear (1) and
guide bar (3) relative to one another
NInsert and tighten screw (2)
NRemove and reverse tensioning
gear (1)
26
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
001BA186 KN
1
181BA012 KN
2
3
181BA013 KN
135BA011 KN
4
5
2310BA018 KN
Releasing the chain brake
NPull hand guard towards the front
handle until it engages audibly –
chain brake is released
Fitting the saw chain
NFit the saw chain – starting at the
nose of the guide bar – pay attention
to the position of the tensioning gear
and the cutting edges
NTurn tensioning gear (1) to the right
as far as possible
NTurn the guide bar so that the
tensioning gear faces the user
NPlace the saw chain on the chain
sprocket (2)
NSlide the guide bar over the collar
screw (3); the head of the rear collar
screw must protrude into the oblong
hole
NGuide the drive link into the bar
groove (see arrow) and turn the
tensioning gear to the left as far as
possible
NFit chain sprocket cover, sliding the
guide lugs into the engine housing
openings
Put on protective gloves – risk of
injury by the sharp cutters.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
When fitting the chain sprocket cover,
the teeth of the adjusting wheel and the
tensioning gear must mesh; if
necessary,
27
English
1
133BA024 KN
1
143BA045 KN
Nturn the adjusting wheel (4) a little
until the chain sprocket cover can
be slid completely against the
engine housing
NSwing grip (5) into position (until it
engages)
NFit wing nut and tighten lightly
NNext step: see "Tensioning the Saw
Chain"
Tensioning the Saw Chain
(side chain tensioner)
Retensioning during cutting work:
NShut off the engine.
NLoosen the nuts.
NHold the bar nose up.
NUse a screwdriver to turn the
tensioning screw (1) clockwise until
the chain fits snugly against the
underside of the bar.
NWhile still holding the bar nose up,
tighten down the nuts firmly.
NGo to "Checking Chain Tension".
A new chain has to be retensioned more
often than one that has been in use for
some time.
NCheck chain tension frequently –
see chapter on "Operating
Instructions".
Tensioning the Saw Chain
(front chain tensioner)
Retensioning during cutting work:
NSwitch off the engine.
NLoosen the nuts.
NHold the bar nose up.
NUse a screwdriver to turn the
tensioning screw (1) clockwise until
the chain fits snugly against the
underside of the bar.
NWhile still holding the bar nose up,
tighten down the nuts firmly.
NGo to "Checking Chain Tension".
A new chain has to be retensioned more
often than one that has been in use for
some time.
NCheck chain tension frequently –
see chapter on "Operating
Instructions".
28
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
1
2
001BA112 KN
143BA007 KN
Tensioning the Saw Chain
(quick chain tensioner)
Retensioning during cutting work:
NShut off the engine.
NPull out the hinged clip and loosen
the wingnut.
NTurn the adjusting wheel (1)
clockwise as far as stop.
NTighten down the wingnut (2) firmly
by hand.
NFold down the hinged clip.
NGo to "Tensioning the Saw Chain"
A new chain has to be retensioned more
often than one that has been in use for
some time.
NCheck chain tension frequently –
see chapter on "Operating
Instructions".
Checking Chain Tension
NShut off the engine.
NWear work gloves to protect your
hands.
NThe chain must fit snugly against
the underside of the bar and it must
still be possible to pull the chain
along the bar by hand.
NIf necessary, retension the chain.
A new chain has to be retensioned more
often than one that has been in use for
some time.
NCheck chain tension frequently –
see chapter on "Operating
Instructions".
Fuel
This engine is certified to operate on
unleaded gasoline and the STIHL twostroke engine oil at a mix ratio of 50:1.
Your engine requires a mixture of highquality gasoline and two-stroke air
cooled engine oil.
Use mid-grade unleaded gasoline with a
minimum octane rating of 89 (R+M/2)
and no more than 10% ethanol content.
Fuel with a lower octane rating may
increase engine temperatures. This, in
turn, increases the risk of piston seizure
and damage to the engine.
The chemical composition of the fuel is
also important. Some fuel additives not
only detrimentally affect elastomers
(carburetor diaphragms, oil seals, fuel
lines, etc.), but magnesium castings and
catalytic converters as well. This could
cause running problems or even
damage the engine. For this reason
STIHL recommends that you use only
high-quality unleaded gasoline!
Gasoline with an ethanol content of
more than 10% can cause running
problems and major damage in engines
with a manually adjustable carburetor
and should not be used in such engines.
The ethanol content in gasoline affects
engine running speed – it may be
necessary to readjust the carburetor if
you use fuels with various ethanol
contents.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
29
English
001BA229 KN
001BA218 KN
Warning!
To reduce the risk of personal injury
from loss of control and / or contact with
the running cutting tool, do not use your
unit with incorrect idle adjustment. At
correct idle speed, the cutting tool
should not move.
If your power tool shows an incorrect
idle adjustment, have your STIHL dealer
check your power tool and make proper
adjustments and repairs.
The idle speed and maximum speed of
the engine change if you switch from a
fuel with a certain ethanol content to
another fuel with a much higher or lower
ethanol content.
This problem can be avoided by always
using fuel with the same ethanol
content.
Use only STIHL two-stroke engine oil or
equivalent high-quality two-stroke
engine oils that are designed for use
only in air cooled two-cycle engines.
We recommend STIHL HP Ultra 2-Cycle
Engine Oil since it is specially
formulated for use in STIHL engines.
Do not use BIA or TCW rated (twostroke water cooled) mix oils or other
mix oils that state they are for use in both
water cooled and air cooled engines
(e.g., outboard motors, snowmobiles,
chain saws, mopeds, etc.).
Take care when handling gasoline.
Avoid direct contact with the skin and
avoid inhaling fuel vapor. When filling at
the pump, first remove the container
from your vehicle and place the
container on the ground before filling. To
reduce the risk of sparks from static
discharge and resulting fire and/or
explosion, do not fill fuel containers that
are sitting in or on a vehicle or trailer.
The container should be kept tightly
closed in order to limit the amount of
moisture that gets into the mixture.
The machine‘s fuel tank should be
cleaned as necessary.
Fuel mix ages
Only mix sufficient fuel for a few days
work, not to exceed 3 months of storage.
Store in approved fuel-containers only.
When mixing, pour oil into the container
first, and then add gasoline. Close the
container and shake it vigorously by
hand to ensure proper mixing of the oil
with the fuel.
Gasoline
Oil (STIHL 50:1 or equivalent high-quality oils)
US gal.US fl.oz.
12.6
2 1/26.4
512.8
Dispose of empty mixing-oil containers
only at authorized disposal locations.
Fueling
Preparing the machine
NBefore fueling, clean the cap and
the area around it to ensure that no
dirt falls into the fuel tank
NAlways position the machine so that
the cap is facing upwards
Opening
NRaise the grip into an upright
position.
30
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
001BA219 KN
001BA224 KN
001BA220 KN
001BA221 KN
001BA222 KN
001BA223 KN
001BA225 KN
NTurn the cap counterclockwise
(approx. 1/4 turn).
NRemove fuel filler cap.
Refueling
Take care not to spill fuel while fueling
and do not overfill the tank.
Closing
NInsert the cap – positioning marks
on the cap and the fuel tank opening
must line up.
NThe cap should drop fully into the
opening in this position.
NWhile pressing the cap down, twist it
firmly clockwise as far as it will go
(approx. 1/4 turn).
NFold down the grip.
Checking for proper closure
NThe lug on the grip must engage
entirely in the recess (arrow), and
the grip must lie completely flush
with the top of the cap.
NGrip the cap and check for
tightness.
NIf the cap can be moved, it is not
properly installed.
With grip in an upright position:
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
Misalignment of the cap parts
NIf the cap does not drop fully into the
opening when the positioning marks
line up and/or if the cap does not
tighten properly when twisted, the
base of the cap may be rotated out
of position vis-à-vis the top.
NSuch misalignment can result from
handling, cleaning or an improper
attempt at tightening.
31
English
001BA227 KN
001BA226 KN
001BA158 KN
Left:Base of improperly aligned
cap (with open space)
Right:Base of cap correctly posi-
tioned for installation
NTo correct a misalignment, turn the
cap (with the grip up) until it drops
fully into the tank opening.
NTwist the cap counterclockwise as
far as it will go (approx. 1/4 turn) –
this will twist the base of the cap into
the correct position.
NTwist the cap clockwise, closing it
normally – see the sections
"Closing" and "Checking for proper
closure."
NIf your cap still does not tighten
properly, it may be damaged or
broken; immediately stop use of the
unit and take it to your authorized
STIHL dealer for repair.
Chain Lubricant
For automatic and reliable lubrication of
the chain and guide bar – use only an
environmentally compatible quality
chain and bar lubricant. Rapidly
biodegradable STIHL Bioplus is
recommended.
Biological chain oil must be
resistant to aging (e.g. STIHL
Bioplus) since it will otherwise
quickly turn to resin. This results
in hard deposits that are difficult to
remove, especially in the area of
the chain drive, clutch and chain.
It may even cause the oil pump to
seize.
The service life of the chain and guide
bar depends on the quality of the
lubricant. It is therefore essential to use
only a specially formulated chain
lubricant.
Do not use waste oil. Renewed
contact with waste oil can cause
skin cancer. Moreover, waste oil is
environmentally harmful.
Waste oil does not have the
necessary lubricating properties
and is unsuitable for chain
lubrication.
Filling Chain Oil Tank
Preparations
NThoroughly clean the oil filler cap
and the area around it to ensure that
no dirt falls into the tank.
NPosition the machine so that the
filler cap is facing up.
NOpen the filler cap.
Filling chain oil tank
NRefill the chain oil tank every time
you refuel.
Take care not to spill chain oil while
refilling and do not overfill the tank.
NClose the filler cap.
There must still be a small amount of oil
in the oil tank when the fuel tank is
empty.
If the oil level in the tank does not go
down, the reason may be a fault in the oil
supply system: Check chain lubrication,
clean the oilways, contact your dealer
32
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
143BA024 KN
143BA011 KN
for assistance if necessary STIHL
recommends that you have servicing
and repair work carried out exclusively
by an authorized STIHL servicing
dealer.
Checking Chain
Lubrication
The saw chain must always throw off a
small amount of oil.
Never operate your saw without
chain lubrication. If the chain runs
dry, the whole cutting attachment
will be irretrievably damaged
within a very short time. Always
check chain lubrication and the oil
level in the tank before starting
work.
Every new chain has to be broken in for
about 2 to 3 minutes.
After breaking in the chain, check chain
tension and adjust if necessary – see
"Checking Chain Tension".
Chain Brake
Locking chain with chain brake
–in an emergency
–when starting
–at idling speed
The chain is stopped and locked when
the hand guard is pushed toward the bar
nose by the left hand – or when brake is
activated by inertia in certain kickback
situations.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
33
English
143BA012 KN
208BA005 KN
Releasing the chain brake
NPull the hand guard back toward the
front handle.
Always disengage chain brake
before accelerating engine and
before starting cutting work. The
only exception to this rule is when
you check operation of the chain
brake.
High revs with the chain brake
engaged (chain locked) will
quickly damage the powerhead
and chain drive (clutch, chain
brake).
The chain brake is designed to be
activated also by the inertia of the
front hand guard
if the forces are sufficiently high. The
hand guard is accelerated toward the
bar nose - even if your left hand is not
behind the hand guard, e.g. during a
felling cut. The chain brake will operate
only if it has been properly maintained
and the hand guard has not been
modified in any way.
Check operation of chain brake
Before starting work: Run engine at idle
speed, engage the chain brake (push
hand guard toward bar nose).
Accelerate up to full throttle for no more
than 3 seconds – the chain must not
rotate. The hand guard must be free
from dirt and move freely.
Chain brake maintenance
The chain brake is subject to normal
wear. It is necessary to have it serviced
and maintained regularly by trained
personnel, such as your STIHL servicing
dealer, at the following intervals:
Full-time usage:every 3
months
Part-time usage:every 6
months
Occasional usage:every 12
months
Winter Operation
At temperatures below +50°F (+10°C):
NSqueeze the throttle trigger lockout
and move the Master Control lever
to l (cold start).
NTurn the knob above the rear handle
90° counterclockwise.
NLift off the carburetor box cover
vertically.
34
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
135BA029 LÄ
STOP
0
001BA140 KN
NLift out the shutter (in front of spark
plug) vertically.
NTurn the shutter 180°.
NRefit the shutter.
NRefit the carburetor box cover and
secure it with the knob.
Heated air is now drawn in from around
the cylinder to warm the carburetor – this
helps prevent carburetor icing.
At temperatures above +70 °F (+
20°C), always close the shutter
again. This is necessary to avoid
engine running problems and
overheating.
Starting / Stopping the
Engine
Versions with Easy2Start
This machine is extremely simple
and easy to start, even for
children.
To reduce the risk of serious or fatal
injury:
–do not allow children or other
unauthorized persons to attempt to
start or otherwise use the machine
–never allow children or
unauthorized persons access to the
machine
–never leave the machine
unattended while working or during
work breaks
–after work, store in a safe, secure
location out of the reach of children
and other unauthorized persons
Positions of Master Control lever
Stop 0 – engine off – the ignition is
switched off.
Normal run position F – engine runs or
can fire.
Starting throttle n – this position is
used to start a warm engine. The Master
Control lever moves to the normal run
position as soon as the throttle trigger is
squeezed.
Choke closed l – this position is used
to start a cold engine.
Setting the Master Control lever
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
To move the Master Control lever from
the normal run position (F) to choke
closed (l), press down the throttle
trigger lockout and squeeze the throttle
35
English
143BA018 KN
143BA019 KN
trigger at the same time and hold them in
that position – now set the Master
Control lever.
To select the starting throttle
position (n), move the Master Control
lever to choke closed (l) first, then
push it into the starting throttle
position (n).
The Master Control lever must be in the
choke closed position (l) before it can
be moved to to the starting throttle
position (n).
The Master Control lever moves from
the starting throttle position (n) to the
normal run position (F) when you press
down the throttle trigger lockout and blip
the throttle trigger at the same time.
To switch off the engine, move the
Master Control lever to Stop 0.
Choke closed (l)
–if the engine is cold
–If the engine stalls when you open
the throttle after starting.
–If the fuel tank was run until empty
(engine stopped).
–When starting for the first time.
–If the fuel tank was run until empty
(engine stopped).
Holding the saw
There are two ways of holding the saw
when starting.
On the ground
Between knees or thighs
NHold the rear handle tightly between
your legs, just above the knees.
NHold the front handle firmly with
your left hand – your thumb should
be under the handle.
Starting throttle position (n)
–If the engine is warm, i.e. if it has
been running for about one minute.
–When the engine begins to fire.
–After clearing a flooded combustion
chamber.
Fuel pump
Press the fuel pump bulb several times –
even if the bulb is already filled with fuel:
36
NPlace your saw on the ground.
Make sure you have a firm footing –
check that the chain is not touching
any object or the ground.
NHold the saw firmly on the ground
with your left hand on the front
handle – your thumb should be
under the handle.
NPut your right foot into the rear
handle and press down.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
143BA020 KN
135BA027 KN
Starting
Standard versions
NPull the starter grip slowly with your
right hand until you feel it engage –
and then give it a brisk strong pull
and push down the front handle at
the same time. Do not pull out the
starter rope to full length – it might otherwise break. Do not let the
starter grip snap back. Guide it
slowly back into the housing so that
the starter rope can rewind properly.
Machines without additional manual fuel
pump: If the engine is new or after a long
out-of-service period, it may be
necessary to pull the starter rope several
times to prime the fuel system.
Models with Easy2Start
The Easy2Start stores the energy
required to start the saw. For this reason
there may be a delay of a few seconds
between cranking the engine and it
actually starting.
There are two ways of starting machines
with Easy2Start:
NHold the starter grip with your right
hand and pull it out slowly and
steadily – or – hold the starter grip
with your right hand and give it
several short pulls, using only a
short length of rope for each pull.
NPush down the handle while
cranking. Do not pull out the rope to
its full length – it might otherwise break.
NDo not let the starter grip snap back.
Guide it slowly back into the housing
so that the starter rope can rewind
properly.
Starting the saw
Bystanders must be well clear of
the general work area of the saw.
NObserve safety precautions.
Versions with manual fuel pump
NPress the fuel pump bulb at least
five times – even if the bulb is
already filled with fuel.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
37
English
135BA015 KN
2
1
208BA000 KN
0
3
3
4
5
0
208BA001 KN
Versions with decompression valve
NPress in the button to open the
decompression valve.
The decompression valve closes as
soon as the engine fires.
NFor this reason you must press in
the button before each starting
attempt.
All models
NPush the hand guard (1) forward –
the chain is locked.
NPress down trigger lockout (2) and
pull the throttle trigger at the same
time. Set Master Control lever (3) to:
Choke closed (l)
–If the engine is cold (also use this
position if the engine stopped when
you opened the throttle after
starting)
Starting throttle position (n)
–If the engine is warm, i.e. if it has
been running for about one minute.
NHold and start your saw as
described.
When the engine begins to fire:
NSet the Master Control lever to the
starting throttle position (n ).
NHold and start your saw as
described.
As soon as the engine runs
NPress down the trigger lockout and
the blip the throttle trigger (4) – the
Master Control lever (3) moves to
the run position F and the engine
settles down to idling speed.
As the chain brake is still
engaged, the engine must be
returned to idling speed
immediately – or the engine
housing and chain brake might
otherwise be damaged.
38
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
143BA012 KN
NPull the hand guard back toward the
front handle.
The chain brake is now disengaged –
your saw is ready for operation.
Always disengage chain brake
before accelerating the engine.
High revs with the chain brake
engaged (chain locked) will
quickly damage the clutch and
chain brake.
At very low outside temperatures
If the engine does not start
If you did not move the Master Control
lever from the choke closed
position (l) to the starting throttle
position (n) quickly enough, the engine
may be flooded.
NMove the Master Control lever to the
stop position (0).
NRemove the spark plug – see
"Spark Plug".
NDry the spark plug.
NCrank the engine several times with
the starter to clear the combustion
chamber.
NRefit the spark plug – see "Spark
Plug".
NSet Master Control lever to the
starting throttle position (n) – even
if the engine is cold.
NNow start the engine.
Operating Instructions
During the break-in period
A factory new machine should not be run
at high revs (full throttle off load) for the
first three tank fillings. This avoids
unnecessarily high loads during the
break-in period. As all moving parts
have to bed in during the break-in
period, the frictional resistances in the
shortblock are greater during this period.
The engine develops its maximum
power after about 5 to 15 tank fillings.
During work
Do not make the mixture leaner to
achieve an apparent increase in
power – this could damage the
engine – see "Adjusting the
Carburetor".
Open the throttle only when the
chain brake is off. Running the
engine at high revs with the chain
brake engaged (chain locked) will
quickly damage the shortblock
and chain drive (clutch, chain
brake).
NAllow engine to warm up at part
throttle.
Stopping the Engine
NMove the Master Control lever to the
stop position (0).
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
Check chain tension frequently
A new saw chain must be retensioned
more frequently than one that has been
in use already for an extended period.
39
English
2
3
1
143BA026 KN
Chain cold
Tension is correct when the chain fits
snugly against the underside of the bar
but can still be pulled along the bar by
hand. Retension if necessary – see
"Tensioning the Saw Chain".
Chain at operating temperature
The chain stretches and begins to sag.
The drive links must not come out of the
bar groove on the underside of the bar –
the chain may otherwise jump off the
bar. Retension the chain – see
"Tensioning the Saw Chain".
The chain contracts as it cools
down. If it is not slackened off, it
can damage the crankshaft and
bearings.
After a long period of full-throttle
operation
After a long period of full-throttle
operation, allow engine to run for a while
at idle speed so that the heat in the
engine can be dissipated by flow of
cooling air. This protects enginemounted components (ignition,
carburetor) from thermal overload.
After finishing work
NSlacken off the chain if you have
retensioned it at operating
temperature during work.
Always slacken off the chain again
after finishing work. The chain
contracts as it cools down. If it is
not slackened off, it can damage
the crankshaft and bearings.
Short-term storage
Wait for engine to cool down. Keep the
machine with a full tank of fuel in a dry
place, well away from sources of
ignition, until you need it again.
Long-term storage
See "Storing the machine"
Taking Care of the Guide
Bar
NTurn the bar over – every time you
sharpen the chain and every time
you replace the chain – this helps
avoid one-sided wear, especially at
the nose and underside of the bar.
NRegularly clean the oil inlet hole (1),
the oilway (2) and the bar
groove (3).
NMeasure the groove depth – with
the scale on the filing gauge (special
accessory) – in the area used most
for cutting.
40
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
208BA001 KN
208BA005 KN
1
135BA035 KN
Chain type PitchMinimum
groove
depth
Picco3/8" P0.20"
(5.0 mm)
Rapid1/4"0.16"
(4.0 mm)
Rapid3/8"; 0.325" 0.24"
(6.0 mm)
Rapid0.404"0.28"
(7.0 mm)
If groove depth is less than specified:
NReplace the guide bar.
The drive link tangs will otherwise
scrape along the bottom of the groove –
the cutters and tie straps will not ride on
the bar rails.
Air Filter System
The air filter system can be adapted to
suit different operating conditions by
installing a choice of filters. Changing
the filter is quick and simple.
The saw comes standard with either a
fabric filter or a fleece filter.
Cleaning the Air Filter
If there is a noticeable loss of engine
power
NPress down the throttle trigger
lockout and move the Master
Control lever to choke closed l.
NTurn the knob 90° to the left.
NLift off the carburetor box cover
vertically.
NAlways replace damaged filters.
NClean away loose dirt from around
the filter.
Fabric filter
For normal operating conditions and
winter operation.
Fleece filter
For dry and very dusty work areas.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
NPlace fingers behind the air filter (1),
press thumbs against the housing
and swing the filter in direction of
rear handle.
41
English
To avoid damaging the filter, do
not use tools for removing and
installing the air filter.
NBlow out the filter with compressed
air from the clean air side.
If the filter fabric is caked with dirt or no
compressed air is available:
NWash the filter in a clean, non-
flammable solution (e.g. warm
soapy water) and then dry.
NReinstall the air filter.
Engine ManagementAdjusting the Carburetor
Exhaust emissions are controlled by the
design of the fundamental engine
parameters and components (e.g.
carburation, ignition, timing and valve or
port timing) without the addition of any
major hardware.
General Information
The carburetor comes from the factory
with a standard setting.
This setting provides an optimum fuel-air
mixture under most operating
conditions.
Changing the setting of the high speed
screw alters the engine's power output
and the maximum off-load engine
speed.
If the setting is too lean there is a
risk of engine damage due to
insufficient lubrication and
overheating.
Standard setting
NStopping the engine
NCheck the air filter and clean or
replace if necessary.
42
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
LA
208BA010 KN
H
L
H
L
208BA011 KN
L
H
/
3
4
1
LA
Carburetors with H = 1 and L = 1
NCarefully screw both adjusting
screws down onto their seats
(clockwise).
NTurn the high speed screw (H) one
full turn counterclockwise.
NTurn the low speed screw (L) one
full turn counterclockwise.
Carburetors with H = 3/4 and L = 1
NTurn high speed screw (H)
counterclockwise as far as stop (no
more than 3/4 turn).
NTurn the low speed screw (L)
carefully clockwise as far as stop,
then turn it back 1 turn.
Readjust idle
Engine stops while idling
NTurn the low speed screw (L)
carefully clockwise as far as stop,
then turn it back 1 turn.
NTurn the idle speed screw (LA)
clockwise until the chain begins to
run – then back it off 1/4 turn.
Chain runs when engine is idling
NTurn the low speed screw (L)
carefully clockwise as far as stop,
then turn it back 1 turn.
NTurn the idle speed screw (LA)
counterclockwise until the chain
stops running – then turn it another
1/4 turn in the same direction.
If the chain continues moving
when the engine is idling, have
your saw checked and repaired by
your servicing dealer.
Erratic idling behavior, poor
acceleration (even though low speed
screw is open one turn)
NIdle setting is too lean: Turn the low
speed screw (L) counterclockwise
until the engine runs and
accelerates smoothly.
It is usually necessary to change the
setting of the idle speed screw (LA) after
every correction to the low speed
screw (L).
Fine tuning for operation at high
altitude
A slight correction of the setting may be
necessary if engine does not run
satisfactorily:
NCheck the standard setting.
NWarm up the engine.
NTurn high speed screw (H) slightly
clockwise (leaner). On carburetors
with H = 3/4, turn no further than
stop.
If the setting is too lean there is a
risk of engine damage due to
insufficient lubrication and
overheating.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
43
English
208BA005 KN
4
3
135BA001 KN
208BA020 KN
000BA039 KN
A
Spark Plug
If engine is down on power, difficult to
start or runs poorly at idling speed, first
check the spark plug.
Fit a new spark plug after approx. 100
operating hours or earlier if the
electrodes are badly eroded.
Wrong fuel mix (too much engine oil in
the gasoline), a dirty air filter and
unfavorable running conditions (mostly
at part throttle etc.) affect the condition
of the spark plug. These factors cause
deposits to form on the insulator nose
which may result in trouble in operation.
Removing the Spark Plug
NDepress throttle trigger lockout and
throttle trigger at the same time and
move the Master Control lever to
choke closed l.
NPlace fingers behind the air filter (3),
press thumbs against the housing,
swing the filter in the direction of the
rear handle and remove it.
NRemove the shutter (4).
NPull off the spark plug boot.
NUnscrew the spark plug.
Checking the Spark Plug
NClean dirty spark plug.
NCheck electrode gap (A) and
readjust if necessary – see
"Specifications".
NUse only resistor type spark plugs of
the approved range.
Rectify problems which have caused
fouling of spark plug:
–Too much oil in fuel mix.
–Dirty air filter.
–Unfavorable running conditions,
e.g. operating at part load.
NTurn the knob 90° to the left.
NLift off the carburetor box cover
vertically.
44
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
Warning!
1
2
000BA071 KN
1
1
1
1
133BA014 KN
To reduce the risk of fire and burn injury,
use only spark plugs authorized by
STIHL. Always press spark plug boot (1)
snugly onto spark plug terminal (2) of
the proper size. (Note: If terminal has
detachable SAE adapter nut, it must be
attached.) A loose connection between
spark plug boot and ignition wire connector in the boot may create arcing that
could ignite combustible fumes and
cause a fire.
English
Engine Running BehaviorReplacing the Starter Rope
and Rewind Spring
If engine running behavior is
unsatisfactory even though the air filter
is clean and the carburetor is properly
adjusted, the cause may be the muffler.
Have the muffler checked for
contamination (carbonization) by your
servicing dealer.
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer.
NTake out the screws (1).
NPush the hand guard upwards.
NPull the underside of the fan
housing away from the crankcase
and remove it downwards.
Installing the spark plug
NScrew home the spark plug, fit the
boot and press it down firmly.
NInstall the shutter and air filter.
NFit the carburetor box cover.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
45
English
208BA012 KN
2
3
4
5
6
7
8
9
208BA013 KN
7
8
9
208BA017 KN
9
10
208BA014 KN
a
135BA036 KN
12
11
108BA015 KN
Versions with Easy2Start
NUse circlip pliers to carefully remove
the circlip (2).
NPull off the washer (3), carrier (4),
spring housing (5) and washer (6).
If suitable circlip pliers are not available,
have the starter rope or rewind spring
replaced by your servicing dealer.
Standard versions
The rewind spring may pop out
and uncoil during this operation –
take care to avoid the risk of
injury.
Versions with Easy2Start
NRemove the spring clip (7).
NCarefully remove the rope rotor
with washer (8) and pawls (9).
The rewind spring may pop out
and uncoil during this operation –
take care to avoid the risk of
injury.
Replacing the Starter Rope
Models with ElastoStart
NThread the new rope through the
starter grip and tie a simple
overhand knot. Dimension "a"
should be about 0.16 in (4 mm) to
0.23 in (7 mm).
NPull the knot back into the grip.
NRefit the cap in the grip.
NRemove the spring clip (7).
NCarefully remove the rope rotor
46
with washer (8) and pawl (9).
NPry the cap (10) out of the grip.
NRemove the remaining rope from
the rotor and starter grip.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
Thread the end of the rope
Nthrough the top of the guide
bushing (11) and rope rotor (12)
and secure it with a simple
overhand knot.
NGo to "Installing the Rope Rotor".
English
135BA032 LÄ
7
8
9
208BA013 KN
7
8
9
208BA017 KN
9
Models without ElastoStart and
models with Easy2Start
NRemove the remaining rope from
the rotor and starter grip.
NThread the new starter rope through
the rotor and secure it with a simple
overhand knot.
NThread the other end of the rope
through the rope guide bushing
(from inside) and the underside of
the starter grip and secure it with
one of the special knots shown – do
not wind the rope onto the rotor.
Installing the Rope Rotor
Standard versions
NCoat the rope rotor bearing bore
with non-resinous oil.
NSlip the rotor over the starter post –
turn it back and forth to engage the
anchor loop of the rewind spring.
NRefit the pawl (9) in the rotor.
NFit the washer (8) on the starter
post.
NUse a screwdriver or suitable pliers
to install the spring clip (7) on the
starter post and engage it on the
pawl's peg – the spring clip must
point clockwise as shown in the
illustration.
Versions with Easy2Start
NCoat the rope rotor bearing bore
with non-resinous oil.
NSlip the rotor over the starter post –
turn it back and forth to engage the
anchor loop of the rewind spring.
NRefit the pawls (9) in the rotor.
NFit the washer (8) on the starter
post.
NUse a screwdriver or suitable pliers
to install the spring clip (7) on the
starter post and engage it on the
pawl's peg – the spring clip must
point clockwise as shown in the
illustration.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
47
English
108BA014 KN
001BA126 KN
Tensioning the Rewind Spring
NMake a loop in the starter rope and
use it to turn the rope rotor six full
revolutions in the direction of the
arrow.
NHold the rotor steady. Pull out and
straighten the twisted rope.
NRelease the rope rotor.
NRelease the rope slowly so that it
winds onto the rotor.
The starter grip must sit firmly in the rope
bushing. If the grip droops to one side:
Add one more turn on the rope rotor to
increase spring tension.
When the starter rope is fully
extended it must still be possible
to rotate the rotor another half
turn. If this is not the case, the
spring is overtensioned and could
break.
NTake one turn of the rope off the
rotor.
Versions with Easy2Start
NFit the spring housing, driver and
washer on the starter post.
NUse circlip pliers to carefully install
the circlip in the starter post groove.
All versions
NFit the fan housing on the
crankcase.
Replacing a Broken Rewind Spring
NRemoving the Rope Rotor
The bits of spring may still be
under tension and could fly apart
when you take them out of the
housing. To reduce the risk of
injury, wear face protection and
work gloves.
NCarefully remove the parts of the
spring.
NLubricate the new spring with a few
drops of non-resinous oil.
NPlace the new spring with frame in
position in the fan housing – the
anchor loop must engage the lug in
the housing.
NApply suitable tools (screwdriver,
punch, etc.) to the recesses and
push the spring into its seat in the
fan housing – it slips out of the
frame in this process.
NTake the frame out of the fan
housing.
NReinstall the rope rotor, tension the
rewind spring, fit the fan housing
and secure it in position.
48
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
Storing the MachineChecking and Replacing
001BA121 KN
001BA122 KN
1
2
4
5
6
1
2
3
6
the Chain Sprocket
English
For periods of 3 months or longer
NDrain and clean the fuel tank in a
well ventilated area.
NDispose of fuel properly in
accordance with local
environmental requirements.
NRun the engine until the carburetor
is dry – this helps prevent the
carburetor diaphragms sticking
together.
NRemove the saw chain and guide
bar, clean them and spray with
corrosion inhibiting oil.
NThoroughly clean the machine –
pay special attention to the cylinder
fins and air filter.
NIf you use a biological chain and bar
lubricant, e.g. STIHL BioPlus,
completely fill the chain oil tank.
NStore the machine in a dry, high or
locked location, out of the reach of
children and other unauthorized
persons.
NRemove chain sprocket cover, saw
chain and guide bar.
NRelease chain brake – pull hand
guard against the front handle
Fit new chain sprocket
–after use of two saw chains or
earlier
–if the wear marks (arrows) are
deeper than 0.02 in (0.5 mm) –
otherwise the service life of the saw
chain is reduced – use check gauge
(special accessory) to test
Using two saw chains in alternation
helps preserve the chain sprocket.
Use only STIHL original chain sprockets
to help ensure reliable functioning of the
chain brake.
NUse a screwdriver to remove the E-
clip (1)
NRemove the washer (2)
NRemove rim sprocket (3) (if so
equipped), clutch drum (4) and
needle cage (6).
NInspect transport profile for rim
sprocket on the clutch drum (4) – if
there are also heavy signs of wear,
also replace the clutch drum
NRemove clutch drum with integrated
spur chain sprocket (5) (if so
equipped) including needle cage (6)
from the crankshaft – for
powerheads with Quickstop Plus
chain brake system, depress
throttle trigger lockout beforehand
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
49
English
689BA027 KN
a
Install spur chain sprocket / rim
sprocket
NClean crankshaft stub and needle
cage and lubricate with STIHL
lubricant (special accessory)
NSlide needle cage onto the
crankshaft stub
NAfter refitting, turn the clutch drum
and/or spur chain sprocket approx.
1 full turn so that the carrier for the
oil pump drive engages
NRefit the rim sprocket – cavities
toward the outside
NRefit washer and E-clip on the
crankshaft
Maintaining and
Sharpening the Saw Chain
Sawing effortlessly with a properly
sharpened saw chain
A properly sharpened saw chain cuts
through wood effortlessly even with very
little pushing.
Never use a dull or damaged saw chain
– this leads to increased physical strain,
increased vibration load, unsatisfactory
cutting results and increased wear.
NClean the saw chain
NCheck the saw chain for cracks and
damaged rivets
NReplace damaged or worn chain
components and adapt these parts
to the remaining parts in terms of
shape and level of wear – rework
accordingly
Carbide-tipped (Duro) saw chains are
especially wear-resistant. For an optimal
sharpening result, STIHL recommends
STIHL servicing dealers.
Compliance with the angles and
dimensions listed below is
absolutely necessary. An
improperly sharpened saw chain –
especially depth gauges that are
too low – can lead to increased
kickback tendency of the chain
saw – risk of injury!
Chain pitch
The chain pitch marking (a) is embossed
in the area of the depth gauge of each
cutter.
Marking (a)Chain pitch
Inchesmm
71/4 P6.35
1 or 1/41/46.35
6, P or PM3/8 P9.32
2 or 3250.3258.25
3 or 3/83/89.32
4 or 4040.40410.26
The diameter of file to be used depends
on the chain pitch – see table
"Sharpening tools".
The angles of the cutter must be
maintained during resharpening.
50
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
A
B
689BA021 KN
689BA025 KN
001BA203 KN
689BA018 KN
90°
689BA043 KN
Sharpening and side plate angles
ASharpening angle
STIHL saw chains are sharpened with a
30° sharpening angle. Ripping chains,
which are sharpened with a 10°
sharpening angle, are exceptions.
Ripping chains have an X in the
designation.
BSide plate angle
The correct side plate angle results
automatically when the specified file
holder and file diameter are used.
Tooth shapesAngle (°)
AB
Micro = semi-chisel, e. g.,
3075
63 PMC3, 26 RMC3,
36 RMC
Micro = full chisel, e. g.,
3060
63 PS3, 26 RSC, 36 RSC3
Ripping chain, e. g.,
1075
63 PMX, 36 RMX
The angles must be identical for all
cutters in the saw chain. Varying angles:
Rough, uneven running of the saw
chain, increased wear – even to the
point of saw chain breakage.
File holder
NUse a file holder
Always use a file holder (special
accessory, see table "Sharpening tools")
when sharpening saw chains by hand.
File holders have markings for the
sharpening angle.
Use only special saw chain files!
Other files are unsuitable in terms of
shape and type of cutting.
To check the angles
STIHL filing gauge (special accessory,
see table "Sharpening tools") – a
universal tool for checking sharpening
and side plate angles, depth gauge
setting, and tooth length, as well as
cleaning grooves and oil inlet holes.
Proper sharpening
NSelect sharpening tools in
accordance with chain pitch
NClamp guide bar if necessary
NBlock saw chain – push the hand
guard forward
NTo advance the saw chain, pull the
hand guard toward the handlebar:
The chain brake is disengaged.
With the Quickstop Plus chain brake
system, additionally press the
throttle trigger lockout
NSharpen frequently, removing little
material – two or three strokes of the
file are usually sufficient for simple
resharpening
NGuide the file: horizontally (at a
right angle to the side surface of the
guide bar) in accordance with the
specified angle – according to the
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
51
English
689BA023 KN
a
2
689BA061 KN
1
689BA051 KN
689BA044 KN
markings on the file holder – rest the
file holder on the tooth head and the
depth gauge
NFile only from the inside outward
NThe file only sharpens on the
forward stroke – lift the file on the
backstroke
NDo not file tie straps and drive links
NRotate the file a little periodically in
order to avoid uneven wear
NTo remove file burr, use a piece of
hardwood
NCheck angle with file gauge
All cutters must be equally long.
With varying cutter lengths, the cutter
heights also vary and cause rough
running of the saw chain and chain
breakage.
NAll cutters must be filed down equal
to the length of the shortest cutter –
ideally, one should have this done
by a servicing dealer using an
electric sharpener
aRequired distance between depth
gauge and cutting edge
When cutting softwood outside of the
frost season, the distance can be
increased by up to 0.2 mm (0.008").
The depth gauge setting is lowered
when the cutter is sharpened.
NCheck the depth gauge setting after
each sharpening
Saw chains with humped drive link (2) –
upper part of the humped drive link (2)
(with service mark) is lowered at the
same time as the depth gauge of the
cutter.
The rest of the humped drive link
must not be filed; otherwise, this
could increase the tendency of the
chain saw to kick back.
NRework the depth gauge so that it is
flush with the file gauge
Depth gauge setting
The depth gauge determines the depth
to which the cutter penetrates the wood
and thus the chip thickness.
52
NLay the appropriate file gauge (1)
for the chain pitch on the saw chain
and press it against the cutter to be
checked – if the depth gauge
protrudes past the file gauge, the
depth gauge must be reworked
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
NAfterwards, dress the leading edge
of the depth gauge parallel to the
service mark (see arrow) – when
doing this, be careful not to further
lower the highest point of the depth
gauge
Depth gauges that are too low
increase the kickback tendency of
the chain saw.
English
689BA052 KN
NAfter sharpening, clean the saw
chain thoroughly, removing any
filings or grinding dust – lubricate
the saw chain thoroughly
NIn the event of extended periods of
disuse, store saw chains in cleaned
and oiled condition
NLay the file gauge on the saw chain
– the highest point of the depth
gauge must be flush with the file
gauge
consisting of file holder with round file, taper square file and file gauge
1)
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
53
English
Inspections and
Maintenance by Dealer
Spark Arresting Screen in Muffler
Spark arresting screen in muffler (not all
markets)
NIf the engine is down on power,
check the spark arresting screen in
the muffler.
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer.
54
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
Maintenance and Care
The following maintenance intervals apply for normal operating conditions only. If your daily working
time is longer or operating conditions are difficult (very dusty work area, resin-rich wood, tropical
wood, etc.), shorten the specified intervals accordingly. If you only use the saw occasionally, extend
the intervals accordingly.
before starting work
after finishing work or daily
after each refueling stop
weekly
Complete machine
Throttle trigger, throttle trigger lockout, choke
lever, stop switch, Master Control lever (depending
on version)
Chain brake
Pickup body/filter in fuel tank
Fuel tankCleanX
Chain oil tankCleanX
Chain LubricationCheckX
Saw chain
Guide bar
Chain sprocketCheckX
Air filter
Anti-vibration elements
Visual inspection (condition, leaks)XX
CleanX
Check operationXX
Check operationXX
Have checked by dealer
CheckX
Clean, replace filter elementXX
ReplaceXXX
Inspect, also check sharpnessXX
Check chain tensionXX
SharpenX
Check (wear, damage)X
Clean and turn overX
DeburrX
ReplaceXX
CleanXX
ReplaceX
Check XX
Have replaced by dealer
1)
1)
English
monthly
every 12 months
if problem
if damaged
if required
X
X
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
55
English
The following maintenance intervals apply for normal operating conditions only. If your daily working
time is longer or operating conditions are difficult (very dusty work area, resin-rich wood, tropical
wood, etc.), shorten the specified intervals accordingly. If you only use the saw occasionally, extend
the intervals accordingly.
before starting work
after finishing work or daily
after each refueling stop
weekly
monthly
every 12 months
if problem
Cooling inletsCleanX
Cylinder finsCleanXX
Carburetor
Spark plug
All accessible screws and nuts (not adjusting
2)
screws)
Spark arresting screen in muffler (not all markets)
Chain catcher
Safety labelsReplaceX
1)
STIHL recommends a STIHL servicing dealer.
2)
Firmly tighten down the cylinder base screws of professional saws (3.4 kW or more) after 10 to 20 hours of operation.
Check idle adjustment – chain must not rotateXX
Adjusting Idle SpeedX
Readjust electrode gapX
Replace after 100 hours of operation
RetightenX
1)
Check
Clean, replace if necessary
1)
X
CheckX
ReplaceX
if damaged
if required
X
56
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
Main Parts
9
3
1
4
5
6
7
8
9
10
11
13
12
8
14
15
2
24
26
27
17
16
18
19
21
20
23
22
25
#
208BA018 KN
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
5Chain Brake
6Muffler
7Chain Sprocket
8Chain Sprocket Cover
9Chain Catcher
10 Side Chain Tensioner
11 Front Chain Tensioner
12 Guide Bar
13 Oilomatic Saw Chain
14 Adjusting Wheel for Quick Chain
Tensioner
15 Handle of Wingnut (Quick Chain
Tensioner1))
16 Oil Filler Cap
17 Bumper Spike
18 Front Hand Guard
19 Front Handle (Handlebar)
20 Starter Grip
21 Spark Plug Boot
22 Master Control Lever
23 Fuel Filler Cap
24 Throttle Trigger
25 Throttle Trigger Lockout
26 Rear Handle
27 Rear Hand Guard
#Serial Number
1)
Depending on Model
1)
1)
1)
1)
1)
57
English
Definitions
1Carburetor Box Cover Twist Lock
Lock for carburetor box cover.
2Carburetor Adjusting Screws
For tuning the carburetor.
3Fuel Pump
Provides additional fuel feed for a
cold start.
4Decompression Valve
(Automatically Resetting)
Releases compression pressure to
make engine starting easier – when
activated.
5Chain Brake
A device to stop the rotation of the
chain. Is activated in a kickback
situation by the operator's hand or
by inertia.
6Muffler
Reduces engine exhaust noises
and diverts exhaust gases away
from operator.
7Chain Sprocket
The toothed wheel that drives the
saw chain.
8Chain Sprocket Cover
Covers the clutch and chain
sprocket.
9Chain Catcher
Helps to reduce the risk of operator
contact by a chain when it breaks or
comes off the bar.
10 Side Chain Tensioner
Permits precise adjustment of chain
tension.
11 Front Chain Tensioner
Permits precise adjustment of chain
tension.
12 Guide Bar
Supports and guides the saw chain.
13 Oilomatic Saw Chain
A loop consisting of cutters, tie
straps and drive links.
14 Adjusting Wheel for Quick Chain
Tensioner
Permits precise adjustment of chain
tension.
15 Handle of Wingnut (Quick Chain
Tensioner)
Has to be released to tension chain
with adjusting wheel.
16 Oil Filler Cap
For closing the oil tank.
17 Bumper Spike
Toothed stop for holding saw steady
against wood.
18 Front Hand Guard
Provides protection against
projecting branches and helps
prevent left hand from touching the
chain if it slips off the handlebar. It
also serves as the lever for chain
brake activation.
19 Front Handle (Handlebar)
Handlebar for the left hand at the
front of the saw.
20 Starter Grip
The grip of the pull starter, for
starting the engine.
21 Spark Plug Boot
Connects the spark plug with the
ignition lead.
22 Master Control Lever
Lever for choke control, starting
throttle, run and stop switch
position.
23 Fuel Filler Cap
For closing the fuel tank.
24 Throttle Trigger
Controls the speed of the engine.
25 Throttle Trigger Lockout
Must be depressed before the
throttle trigger can be activated.
26 Rear Handle
The support handle for the right
hand, located at the rear of the saw.
27 Rear Hand Guard
Gives added protection to
operator's right hand.
Guide Bar Nose
The exposed end of the guide bar.
(not illustrated, see chapter
"Tensioning the Saw Chain")
Clutch
Couples engine to chain sprocket
when engine is accelerated beyond
idle speed. (not illustrated)
Anti-Vibration System
The anti-vibration system includes a
number of anti-vibration elements
designed to reduce the
transmission of vibrations created
by the engine and cutting
attachment to the operator's hands.
(not illustrated)
58
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
Specifications
EPA / CEPA
The Emission Compliance Period
referred to on the Emissions
Compliance Label indicates the number
of operating hours for which the engine
has been shown to meet Federal
emission requirements.
Category
A = 300 hours
B = 125 hours
C = 50 hours
CARB
The Emission Compliance Period used
on the CARB-Air Index Label indicates
the terms:
)
Bore:1.6 in. (40 mm)
Stroke:1.1 in. (28 mm)
Engine power to
ISO 7293:
2.0 hp (1.5 kW)
at 9,000 rpm
Idle speed:2,800 rpm
High speed setting
when performing
repairs (with bar and
chain):12,500 rpm
MS 230, MS 230 C
Displacement:2.45 cu. in.
(40.2 cm
3
)
Bore:1.6 in. (40 mm)
Stroke:1.26in. (32mm)
Engine power to
ISO 7293:
2.5 hp (1.9 kW)
at 10,000 rpm
Idle speed:2,800 rpm
High speed setting
when performing
repairs (with bar and
chain):14,000 rpm
MS 250, MS 250 C
Displacement:2.77 cu. in.
(45.4 cm
3
)
Bore:1.7 in.
(42.5 mm)
Stroke:1.26in. (32mm)
Engine power to
ISO 7293:
3.0 hp (2.2 kW)
at 10,000 rpm
Idle speed:2,800 rpm
High speed setting
when performing
repairs (with bar and
chain):14,000 rpm
Ignition System
Electronic magneto ignition
Spark plug (resistor
type):Bosch WSR 6 F
Electrode gap:0.02 in. (0.5 mm)
Fuel System
All position diaphragm carburetor with
integral fuel pump
Fuel tank capacity:15.9 fl.oz (0.47 l)
Chain Lubrication
Fully automatic, speed-controlled oil
pump with rotary piston
Oil tank capacity:6.8 fl.oz (0.2 l)
Weight
dry, without bar and chain
MS 210:9.7 lbs
(4.4 kg)
MS 210 C with quick chain
adjuster and
Easy2Start:
10.6 lbs.
(4.8 kg)
MS 230:10.1 lbs
(4.6 kg)
MS 230 C with quick chain
adjuster and
Easy2Start:
10.8 lbs
(4.9 kg)
MS 250:10.1 lbs
(4.6 kg)
MS 250 C with quick chain
adjuster and
Easy2Start:
10.8 lbs
(4.9 kg)
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
59
English
Cutting Attachment (MS 210,
MS 210 C, MS 230, MS 230 C)
Recommended cutting attachments
complying with Section 5.11 of ANSI B
175.1-2000.
Observe notes on ANSI B 175.1-2000
and definition of "low kickback chain" in
chapter on "Safety Precautions and
Working Techniques".
Rollomatic E 3/8" P Guide Bars
Reduced kickback STIHL guide bar
(with green label)
Cutting lengths: 12, 14, 16 in. (30, 35,
40 cm)
Pitch:3/8" P (9.32 mm)
Groove width:0.050 in. (1.3 mm)
Nose sprocket:9-teeth
3/8" P Chain
Low kickback STIHL saw chains (with
green label)
Picco Micro Comfort 3 (63 PMC3)
Picco Duro (63 PD3)
Pitch:3/8" P (9.32 mm)
Drive link gauge: 0.050 in. (1.3 mm)
Chain sprocket
6--tooth for 3/8" (spur sprocket)
Cutting Attachment (MS 250,
MS 250 C)
Recommended cutting attachments
complying with Section 5.11 of ANSI B
175.1-2000.
Observe notes on ANSI B 175.1-2000
and definition of "low kickback chain" in
chapter on "Safety Precautions and
Working Techniques".
Rollomatic E 3/8" P guide bars
Reduced kickback STIHL guide bar
(with green label)
Cutting lengths: 12, 14, 16, 18 in. (30,
35, 40, 45 cm)
Pitch:3/8" P (9.32 mm)
Groove width:0.050 in. (1.3 mm)
Nose sprocket:9-tooth
Rollomatic E .325" guide bars
Reduced kickback STIHL guide bar
(with green label)
Cutting lengths: 16, 18 in. (40, 45 cm)
Pitch:.325" (8.25 mm)
Groove width:0.063 in. (1.6 mm)
Nose sprocket:11-tooth
3/8" P Chain
Low kickback STIHL saw chains (with
green label)
Picco Micro Comfort 3 (63 PMC3)
Picco Duro (63 PD3)
Pitch:3/8" P (9.32 mm)
Drive link gauge: 0.050 in. (1.3 mm)
.325" saw chain
Low kickback STIHL saw chains (with
green label)
Rapid Micro Comfort 3 (26 RMC3)
Pitch:.325" (8.25 mm)
Drive link gauge: 0.063 in. (1.6 mm)
Chain sprockets
6-tooth for 3/8" (spur sprocket)
7-tooth for 0.325" (spur sprocket)
Cutting Attachment (MS 210,
MS 210 C, MS 230, MS 230 C, MS 250,
MS 250 C)
To ensure compliance with the kickback
properties required in Section 5.11 of
ANSI B 175.1-2000, only use
replacement chains that, when used
with this specific powerhead, comply
with Section 5.11 of the ANSI standard
or are classed as "low kickback" chains
according to ANSI B 175.1-2000.
Please ask your STIHL dealer for the
latest recommendations on new
bar/chain combinations developed after
publication of this instruction manual.
60
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
432
432
1
1
001BA209 KN
cm
INCH
Special Accessories
Contact your STIHL dealer for
information regarding special
accessories that may be available for
your product.
Chain scabbard
If you use guide bars of different lengths
on the saw, the length of the chain
scabbard must be matched to the guide
bar to help reduce the risk of injury.
If the chain scabbard does not cover the
full length of the guide bar, a suitable
chain scabbard or a scabbard extension
is necessary.
Depending on the model, the scabbard
extension either comes standard with
the saw or is available as a special
accessory.
Fitting the chain scabbard extension
onto the scabbard
The scabbard extension has two square
cut-outs (1) that fit onto one of several
sets of locking tabs (2, 3, 4) located on
the scabbard. Each set of locking tabs is
marked with the lenght of the bar to
which they correspond, given in
centimeters on one tab and in inches on
the other.
NDetermine the appropriate set of
tabs to be used based on the length
the bar
NPush the scabbard extension over
the scabbard until the cut-outs align
with desired set of tabs, and let
them lock together
Ordering Spare Parts
Please enter your saw model, serial
number as well as the part numbers of
the guide bar and saw chain in the
spaces provided. This will make reordering simpler.
The guide bar and saw chain are subject
to normal wear and tear. When
purchasing these parts, always quote
the saw model, the part numbers and
names of the parts.
Model
Serial number
Guide bar part number
Chain part number
See "Specifications" in this manual for
the recommended reduced kickback
cutting attachments.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
61
English
Maintenance and RepairsAllocation of STIHL
Incorporated Warranty
Users of this unit should carry out only
the maintenance operations described
in this manual. Other repair work may be
performed only by authorized STIHL
service shops.
Warranty claims following repairs can be
accepted only if the repair has been
performed by an authorized STIHL
servicing dealer using original STIHL
replacement parts.
Original STIHL parts can be identified by
the STIHL part number, the {
logo and, in some cases, by the STIHL
parts symbol K. The symbol may
appear alone on small parts.
Declarations
Allocation of STIHL Incorporated
warranty declarations on compliance
with emission requirements for the
following models:
STIHL Incorporated Federal Emission
Control Warranty Statement
–MS 250
–MS 230 (not for California)
–MS 210 (not for California)
STIHL Incorporated California Exhaust
and Evaporative Emissions Control
Warranty Statement
–MS 230 (for California only)
–MS 210 (for California only)
STIHL Incorporated
Federal Emission Control
Warranty Statement
Your Warranty Rights and
Obligations
The U.S. Environmental Protection
Agency (EPA) and STIHL Incorporated
are pleased to explain the Emission
Control System Warranty on your
equipment type engine. In the U.S. new
1997 and later model year small off-road
equipment engines must be designed,
built and equipped, at the time of sale, to
meet the U.S. EPA regulations for small
non road engines. The equipment
engine must be free from defects in
materials and workmanship which
cause it to fail to conform with U.S. EPA
standards for the first two years of
engine use from the date of sale to the
ultimate purchaser.
STIHL Incorporated must warrant the
emission control system on your small
off-road engine for the period of time
listed below provided there has been no
abuse, neglect or improper maintenance
of your small off-road equipment engine.
Your emission control system includes
parts such as the carburetor and the
ignition system. Also included may be
hoses, and connectors and other
emission-related assemblies.
Where a warrantable condition exists,
STIHL Incorporated will repair your
small off-road equipment engine at no
cost to you including diagnosis (if the
diagnostic work is performed at an
authorized dealer), parts and labor.
62
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
Manufacturer's Warranty Coverage
In the U.S., 1997 and later model year
small off-road equipment engines are
warranted for two years. If any emissionrelated part on your engine is defective,
the part will be repaired or replaced by
STIHL Incorporated free of charge.
Owner's Warranty Responsibilities
As the small off-road equipment engine
owner, you are responsible for the
performance of the required
maintenance listed in your instruction
manual. STIHL Incorporated
recommends that you retain all receipts
covering maintenance on your small offroad equipment engine, but STIHL
Incorporated cannot deny warranty
solely for the lack of receipts or for your
failure to ensure the performance of all
scheduled maintenance.
Any replacement part or service that is
equivalent in performance and durability
may be used in non-warranty
maintenance or repairs, and shall not
reduce the warranty obligations of the
engine manufacturer.
As the small off-road equipment engine
owner, you should be aware, however,
that STIHL Incorporated may deny you
warranty coverage if your small off-road
equipment engine or a part has failed
due to abuse, neglect, improper
maintenance or unapproved
modifications.
You are responsible for presenting your
small off-road equipment engine to a
STIHL service center as soon as a
problem exists. The warranty repairs will
be completed in a reasonable amount of
time, not to exceed 30 days.
If you have any questions regarding your
warranty rights and responsibilities,
please contact a STIHL customer
service representative at 1-800-4678445 or you can write to
STIHL Inc.,
536 Viking Drive, P.O. Box 2015,
Virginia Beach, VA 23450-2015
www.stihlusa.com
Coverage by STIHL Incorporated
STIHL Incorporated warrants to the
ultimate purchaser and each
subsequent purchaser that your small
off-road equipment engine will be
designed, built and equipped, at the time
of sale, to meet all applicable
regulations. STIHL Incorporated also
warrants to the initial purchaser and
each subsequent purchaser that your
engine is free from defects in materials
and workmanship which cause the
engine to fail to conform with applicable
regulations for a period of two years.
Warranty Period
The warranty period will begin on the
date the utility equipment engine is
purchased by the initial purchaser and
you have signed and sent back the
warranty card to STIHL.
If any emission-related part on your
engine is defective, the part will be
replaced by STIHL Incorporated at no
cost to the owner. Any warranted part
which is not scheduled for replacement
as required maintenance, or which is
scheduled only for regular inspection to
the effect of "repair or replace as
necessary" will be warranted for the
warranty period. Any warranted part
which is scheduled for replacement as
required maintenance will be warranted
for the period of time up to the first
scheduled replacement point for that
part.
Diagnosis
You, as the owner, shall not be charged
for diagnostic labor which leads to the
determination that a warranted part is
defective. However, if you claim
warranty for a component and the
machine is tested as non-defective,
STIHL Incorporated will charge you for
the cost of the emission test. Mechanical
diagnostic work will be performed at an
authorized STIHL servicing dealer.
Emission test may be performed either
at STIHL Incorporated or at any
independent test laboratory.
Warranty Work
STIHL Incorporated shall remedy
warranty defects at any authorized
STIHL servicing dealer or warranty
station. Any such work shall be free of
charge to the owner if it is determined
that a warranted part is defective.
Any manufacturer-approved or
equivalent replacement part may be
used for any warranty maintenance or
repairs on emission-related parts and
must be provided without charge to the
owner. STIHL Incorporated is liable for
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
63
English
damages to other engine components
caused by the failure of a warranted part
still under warranty.
The following list specifically defines the
emission-related warranted parts:
–Control Linkages
–Intake Manifold
–Magneto or Electronic Ignition
System (Ignition Module)
–Spark Plug
–Catalytic Converter (if applicable)
–Fuel Tank
–Fuel Cap
–Fuel Line
–Fuel Line Fittings
–Clamps
–Fasteners
Where to make a Claim for Warranty
Service
Bring the product to any authorized
STIHL servicing dealer and present the
signed warranty card.
Maintenance Requirements
mixture (see also instruction "Fuel").
Deviations from this recommendation
regarding quality and mixing ratio of fuel
and oil may require shorter maintenance
intervals.
Limitations
This Emission Control Systems
Warranty shall not cover any of the
following:
Nrepair or replacement required
because of misuse, neglect or lack
of required maintenance,
Nrepairs improperly performed or
replacements not conforming to
STIHL Incorporated specifications
that adversely affect performance
and/or durability, and alterations or
modifications not recommended or
approved in writing by STIHL
Incorporated,
and
Nreplacement of parts and other
services and adjustments
necessary for required maintenance
at and after the first scheduled
replacement point.
STIHL Incorporated
California Exhaust and
Evaporative Emissions
Control Warranty
Statement
For California only
Your Warranty Rights and
Obligations
The California Air Resources Board
(CARB) and STIHL Incorporated are
pleased to explain the Emission Control
System Warranty on your 2007 and later
small off-road equipment engine.
In California, new equipment that uses
small off-road engines must be
designed, built, and equipped to meet
the State's stringent anti-smog
standards. STIHL Incorporated must
warrant the emissions control system on
your small off-road engine for the period
listed below provided there has been no
abuse, neglect or improper maintenance
of your small off-road engine.
Your emissions control system may
include parts such as:
Air Filter, Carburetor, Fuel Pump, Choke
(Cold Start Enrichment System), Control
Linkages, Intake Manifold, Magneto or
Electronic Ignition System (Ignition
Module), Spark Plug, Catalytic
Converter (if applicable), Fuel Tank,
Fuel Cap, Fuel Line, Fuel Line Fittings,
Clamps, Fasteners.
The maintenance instructions in this
manual are based on the application of
the recommended 2-stroke fuel-oil
64
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English
Where a warrantable condition exists,
STIHL Incorporated will repair your
small off-road equipment engine at no
cost to you including diagnosis, parts
and labor.
Manufacturer’s Warranty
Responsibilities
This emissions control system is
warranted for two years in California. If
any emissions-related part on your
equipment is defective, the part will be
repaired or replaced by STIHL
Incorporated free of charge.
Owner’s Warranty Responsibilities
As the small off-road equipment engine
owner, you are responsible for
performance of the required
maintenance listed in your instruction
manual. STIHL Incorporated
recommends that you retain all receipts
covering maintenance on your small offroad equipment engine, but STIHL
Incorporated cannot deny warranty
solely for the lack of receipts or your
failure to ensure the performance of all
scheduled maintenance.
As the small off-road equipment engine
owner, you should however be aware
that STIHL Incorporated may deny you
warranty coverage if your small off-road
equipment engine or a part has failed
due to abuse, neglect, or improper
maintenance or unapproved
modifications.
You are responsible for presenting your
small off-road equipment engine to a
STIHL servicing dealer as soon as the
problem exists. The warranty repairs
should be completed in a reasonable
amount of time, not to exceed 30 days. If
you have any questions regarding your
warranty rights and responsibilities,
please contact a STIHL customer
service representative at 1-800-4678445 or you can write to
STIHL Inc., 536 Viking Drive,
P.O. Box 2015,
Virginia Beach, VA 23450-2015.
Coverage by STIHL Incorporated
STIHL Incorporated warrants to the
ultimate purchaser and each
subsequent purchaser that your small
off-road equipment engine is designed,
built and equipped, at the time of sale, to
meet all applicable emission
regulations.
STIHL Incorporated also warrants to the
initial purchaser and each subsequent
purchaser that your engine is free from
defects in materials and workmanship
which cause the engine to fail to conform
to applicable emission regulations for a
period of two years.
Defects Warranty Period
The warranty periods will begin on the
date the utility equipment engine is
purchased by the initial purchaser. If any
emission-related part on your engine is
defective, the part will be replaced by
STIHL Incorporated at no cost to the
owner.
Add-on or modified parts that are not
exempted by CARB may not be used.
The use of any non exempted add-on or
modified parts will be grounds for
disallowing a warranty claim. STIHL
Incorporated will not be liable to warrant
failures of warranted parts caused by the
use of a non exempted add-on or
modified part.
The warranty on emissions-related parts
will be interpreted as follows:
1. Any warranted part that is not
scheduled for replacement as
required maintenance in the written
instructions required in the
Emission Warranty Parts List (see
below) must be warranted for the
warranty period defined in
Subsection COVERAGE BY STIHL
INCORPORATED, see above. If
any such part fails during the period
of warranty coverage, it must be
repaired or replaced by the
manufacturer according to
Subsection (4) below. Any such part
repaired or replaced under the
warranty must be warranted for the
remaining warranty period.
2. Any warranted part that is
scheduled only for regular
inspection in the written instructions
required by the Emission Warranty
Parts List (see below) must be
warranted for the warranty period
defined in Subsection COVERAGE
BY STIHL INCORPORATED, see
above. A statement in such written
instructions to the effect of "repair or
replace as necessary" will not
reduce the period of warranty
coverage. Any such part repaired or
replaced under warranty must be
warranted for the remaining
warranty period.
3. Any warranted part that is
scheduled for replacement as
required maintenance in the written
instructions required by the
Emission Warranty Parts List (see
below) must be warranted for the
period of time prior to the first
scheduled replacement point for
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
65
English
that part. If the part fails prior to the
first scheduled replacement, the
part must be repaired or replaced by
the engine manufacturer according
to Subsection (4) below. Any such
part repaired or replaced under
warranty must be warranted for the
remainder of the period prior to the
first scheduled replacement point
for the part.
4. Repair or replacement of any
warranted part under the warranty
must be performed at a warranty
station at no charge to the owner.
5. Notwithstanding the provisions of
Subsection (4) above, warranty
services or repairs will be provided
at all manufacturer distribution
centers that are authorized to
service the subject engines.
6. The owner must not be charged for
diagnostic labor that leads to the
determination that a warranted part
is in fact defective, provided that
such diagnostic work is performed
at a warranty station.
Warranty Work
STIHL Incorporated shall remedy
warranty defects at any authorized
STIHL servicing dealer or warranty
station. Any such work shall be free of
charge to the owner if it is determined
that a warranted part is defective. Any
manufacturer approved or equivalent
replacement part may be used for any
warranty maintenance or repairs on
emission-related parts and must be
provided without charge to the owner.
STIHL Incorporated is liable for
damages to other engine components
caused by the failure of a warranted part
still under warranty.
Emission Warranty Parts List
Air Filter, Carburetor, Fuel Pump, Choke
(Cold Start Enrichment System), Control
Linkages, Intake Manifold, Magneto or
Electronic Ignition System (Ignition
Module), Spark Plug, Catalytic
Converter (if applicable), Fuel Tank,
Fuel Cap, Fuel Line, Fuel Line Fittings,
Clamps, Fasteners
Where to make a Claim for Warranty
Service
Bring the STIHL product to any
authorized STIHL servicing dealer and
present the signed STIHL product
registration card, or the print-out of the
electronic product registration.
Limitations
The repair or replacement of any
warranted part otherwise eligible for
warranty coverage may be excluded
from such warranty coverage if STIHL
Incorporated demonstrates that the
STIHL product has been abused,
neglected, or improperly maintained,
and that such abuse, neglect, or
improper maintenance was the direct
cause of the need for repair or
replacement of the part. That
notwithstanding, any adjustment of a
component that has a factory installed,
and properly operating, adjustment
limiting device is still eligible for warranty
coverage.
Trademarks
STIHL Registered Trademarks
®
STIHL
{
K
The color combination orange-grey
(U.S. Registrations #2,821,860;
#3,010,057, #3,010,058, #3,400,477;
and #3,400,476)
®
4-MIX
AUTOCUT
EASYSTART
FARM BOSS
iCademy
OILOMATIC
STIHL Cutquik
STIHL DUROMATIC
STIHL Quickstop
STIHL ROLLOMATIC
STIHL WOOD BOSS
TIMBERSPORTS
WOOD BOSS
YARD BOSS
®
®
®
®
®
®
®
®
®
®
®
®
®
66
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
STIHL Precision Series™
STIHL Protech™
STIHL RAPID™
STIHL SuperCut™
STIHL Territory™
TapAction™
TrimCut™
This listing of trademarks is subject to
change.
Any unauthorized use of these
trademarks without the express written
consent of
ANDREAS STIHL AG & Co. KG,
Waiblingen is strictly prohibited.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
67
English
68
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
Contenido
español / EE.UU
Acerca de este manual de
instrucciones70
Medidas de seguridad y técnicas
de manejo71
Accesorio de corte94
Montaje de la espada y cadena
(tensor lateral de la cadena)95
Montaje de la espada y cadena
(tensor frontal de la cadena)96
Manual de instrucciones originalImpreso en papel libre de cloro.
Montaje de la espada y cadena
(tensor rápido de la cadena)97
Tensado de la cadena de aserrado
(tensor lateral de la cadena)99
Tensado de la cadena de aserrado
(tensor frontal de la cadena)99
Tensado de la cadena de aserrado
(tensor rápido de la cadena)99
Revisión de tensión de la cadena100
Combustible100
Llenado de combustible101
Lubricante de cadena103
Llenado del tanque de aceite de la
cadena104
Las tintas contienen aceites vegetales, el papel es reciclable.
Revisión de lubricación de la
cadena104
Freno de la cadena105
Manejo durante el invierno106
Arranque / parada del motor106
Instrucciones para el uso111
Cuidado de la espada112
Sistema de filtro de aire113
Limpieza del filtro de aire113
Gestión del motor114
Ajuste del carburador114
Bujía115
Funcionamiento del motor117
Sustitución de la cuerda de
arranque y del resorte de
rebobinado117
Almacenamiento de la máquina121
Revisión y sustitución del piñón de
cadena121
Mantenimiento y afilado de la
cadena de aserrado122
Inspección y mantenimiento por el
concesionario127
Información para mantenimiento128
Componentes importantes130
Especificaciones132
Accesorios especiales134
Pedido de piezas de repuesto135
Información de reparación135
Asignación de declaraciones de
garantía de STIHL Incorporated136
Declaración de garantía de STIHL
Incorporated sobre sistemas de
control de emisiones según normas
Federales136
Declaración de garantía de STIHL
Incorporated sobre el control de
emisiones de gases de escape y
emisiones por evaporación para el
Estado de California138
Marcas comerciales141
Permita que solamente las personas
que comprenden la materia tratada en
este manual manejen su motosierra.
Para obtener el rendimiento y
satisfacción máximos de la motosierra
STIHL, es importante que lea,
comprenda y respete las medidas de
seguridad y las instrucciones de uso y
mantenimiento dadas en el capítulo
"Medidas de seguridad y técnicas de
uso", antes de usar su motosierra. Para
obtener información adicional, visite
www.stihlusa.com.
Comuníquese con su representante de
STIHL o el distribuidor de STIHL para su
zona si no se entiende alguna de las
instrucciones dadas en el presente
manual.
¡Advertencia!
Dado que la motosierra es una herramienta para cortar madera que funciona
a gran velocidad, es necesario tomar
medidas especiales de seguridad igual
que con cualquier sierra motorizada,
para reducir el riesgo de lesiones. El
uso descuidado o inadecuado puede
causar lesiones graves e incluso
mortales.
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Acerca de este manual de
instrucciones
Pictogramas
Todos los pictogramas que se
encuentran fijados o grabados en la
máquina se explican en este manual.
Según el modelo, los pictogramas
siguientes pueden aparecer en su
máquina.
Tanque de combustible;
mezcla de gasolina y
aceite de motor
Depósito de aceite de
cadena; aceite de
cadena
Aplicación y soltado del
freno de la cadena STIHL
Quickstop
Sentido de rotación de la
cadena
Ematic; control de cantidad de aceite de cadena
Tensión de la cadena
Precalentamiento del aire
de admisión para funcionamiento en invierno
Aire de admisión para
funcionamiento en
verano
Calentador de manillar
Uso de válvula de
descompresión
Uso de bomba manual de
combustible
Símbolos en el texto
Muchas de las instrucciones de uso y
seguridad vienen acompañadas de
ilustraciones.
Los pasos individuales o
procedimientos descritos en el manual
pueden estar señalados en diferentes
maneras:
NSe usa un punto para denotar un
paso o procedimiento.
Una descripción de un paso o
procedimiento que se refiere
directamente a una ilustración puede
contener números de referencia que
aparecen en la ilustración. Ejemplo:
NSuelte el tornillo (1).
NPalanca (2) ...
Además de las instrucciones de uso, en
este manual pueden encontrarse
párrafos a los que usted debe prestar
atención especial. Tales párrafos están
marcados con los símbolos y las
palabras identificadoras que se
describen a continuación.
¡Peligro!
Indica un riesgo inminente de lesiones
graves o mortales.
Advertencia!
Identifica una situación de peligro que,
al no evitarse, puede resultar en lesiones graves o mortales.
¡Precaución!
Indica el riesgo de daños a la propiedad, incluyendo a la máquina o sus
componentes.
Mejoramientos técnicos
La filosofía de STIHL es mejorar
continuamente todos sus productos.
Como resultado de ello, periódicamente
se introducen cambios de diseño y
mejoras. Por lo tanto, es posible que
algunos cambios, modificaciones y
mejoras no se describen en este
manual. Si las características de
funcionamiento o la apariencia de su
máquina difieren de las descritas en
este manual, comuníquese con el
concesionario STIHL para obtener la
ayuda que requiera.
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Medidas de seguridad y
técnicas de manejo
Dado que la motosierra
es una herramienta de
corte que funciona a gran
velocidad, es necesario
tomar medidas especiales de seguridad para
reducir el riesgo de
lesiones.
Es importante que usted
lea, comprenda bien y
respete las siguientes
advertencias y medidas
de seguridad. Lea el
manual de instrucciones
y las instrucciones de
seguridad periódicamente. El uso
descuidado o inadecuado
puede causar lesiones
graves o incluso
mortales.
¡Advertencia!
Las fuerzas reactivas, incluido el contragolpe, pueden ser peligrosas. Preste
especial atención a la sección en la que
se habla de las fuerzas reactivas.
Pida a su concesionario STIHL que le
enseñe el manejo de la herramienta
motorizada. Todas las medidas de
seguridad que por lo general se toman
cuando se trabaja con un hacha o sierra
manual también son aplicables al
manejo de las motosierras Respete
todas las disposiciones, reglamentos y
normas de seguridad federales,
estatales y locales del caso. Por
ejemplo, cuando utilice una motosierra
para cortar troncos, consulte los
reglamentos de OSHA para "trabajos de
aprovechamiento forestal", en la parte
29 del Código de Disposiciones
Federales 1910.266.
¡Advertencia!
No preste ni alquile nunca su herramienta motorizada sin entregar el
manual de instrucciones. Asegúrese
que todas las personas que utilicen la
máquina lean y comprendan la información contenida en este manual.
¡Advertencia!
El uso de esta máquina puede ser peligroso. La cadena de aserrado tiene
muchos cortadores afilados. Si los cortadores entran en contacto con alguna
parte del cuerpo del operador, le causarán una herida, aunque la cadena esté
detenida.
Use la motosierra solamente para cortar
objetos de madera.
¡Advertencia!
No debe usarse para ningún otro propósito ya que el uso indebido puede
resultar en lesiones personales o daños
a la propiedad, incluso daños de la
máquina.
¡Advertencia!
Nunca se debe permitir a los niños que
usen esta herramienta motorizada. No
se debe permitir la proximidad de otros,
especialmente niños y animales, donde
se esté utilizando la máquina.
¡Advertencia!
Para reducir el riesgo de ocasionar
lesiones a las personas en la cercanía y
daños a la propiedad, nunca deje la
herramienta motorizada en marcha
desatendida. Cuando no está en uso
(por ejemplo durante el descanso), apáguela y asegúrese de que las personas
no autorizadas no puedan usarla.
La mayoría de las medidas de seguridad
y avisos contenidos en este manual se
refieren al uso de todas las motosierras
de STIHL. Los distintos modelos pueden
contar con piezas y controles diferentes.
Vea la sección correspondiente de su
manual de instrucciones para tener una
descripción de los controles y la función
de los componentes de su modelo.
El uso seguro de una motosierra atañe a
1el operador
2la herramienta motorizada
3el uso de la herramienta
motorizada.
EL OPERADOR
Condición física
Usted debe estar en buenas
condiciones físicas y psíquicas y no
encontrarse bajo la influencia de
ninguna sustancia (drogas, alcohol,
etc.) que le pueda restar visibilidad,
destreza o juicio. No maneje esta
máquina cuando está fatigado.
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¡Advertencia!
Esté alerta. Si se cansa, tómese un descanso. El cansancio puede provocar
una pérdida del control. El uso de cualquier herramienta motorizada es
fatigoso. Si usted padece de alguna
dolencia que pueda ser agravada por la
fatiga, consulte a su médico antes de
utilizar esta máquina.
¡Advertencia!
El uso prolongado de una herramienta
motorizada (u otras máquinas) expone
al operador a vibraciones que pueden
provocar el fenómeno de Raynaud
(dedos blancos) o el síndrome del túnel
carpiano.
Estas condiciones reducen la capacidad
de las manos de sentir y regular la
temperatura, producen entumecimiento
y ardor y pueden provocar trastornos
nerviosos y circulatorios, así como
necrosis de los tejidos.
No se conocen todos los factores que
contribuyen a la enfermedad de
Raynaud, pero se mencionan el clima
frío, el fumar y las enfermedades o
condiciones físicas que afectan los
vasos sanguíneos y la circulación de la
sangre, como asimismo los niveles altos
de vibración.por períodos largos. Por lo
tanto, para reducir el riesgo de la
enfermedad de dedos blancos y del
síndrome del túnel carpiano, sírvase
notar lo siguiente:
–La mayor parte de las herramientas
motorizadas de STIHL se ofrecen
con un sistema antivibración ("AV")
cuyo propósito es reducir la
transmisión de las vibraciones
creadas por la máquina a las manos
del operador. Se recomienda el uso
del sistema AV a aquellas personas
que utilizan herramientas
motorizadas en forma constante y
regular.
–Use guantes y mantenga las manos
abrigadas. Para climas fríos se
recomienda usar mangos
calefaccionados, ofrecidos para
algunos de los motores de STIHL.
–Mantenga el sistema AV en buen
estado. Una herramienta
motorizada con los componentes
flojos o con elementos AV dañados
o desgastados también tendrá
tendencia a tener niveles más altos
de vibración. Mantenga afilada la
cadena de la sierra. Una cadena sin
filo aumentará el tiempo de corte, y
el presionar una cadena roma a
través de la madera aumentará las
vibraciones transmitidas a las
manos.
–Agarre firmemente los mangos en
todo momento, pero no los apriete
con fuerza constante y excesiva.
Tómese descansos frecuentes.
Todas las precauciones antes
mencionadas no le garantizan que va a
estar totalmente protegido contra la
enfermedad de Raynaud o el síndrome
del túnel carpiano. Por lo tanto, los
operadores constantes y regulares
deben revisar con frecuencia el estado
de sus manos y dedos. Si aparece
alguno de los síntomas arriba
mencionados, consulte inmediatamente
al médico.
¡Advertencia!
El sistema de encendido de la máquina
STIHL produce un campo electromagnético de intensidad muy baja. El mismo
puede interferir con algunos tipos de
marcapasos. Para reducir el riesgo de
lesiones graves o mortales, las personas portadoras de marcapasos deben
consultar a sus médicos y al fabricante
del marcapasos antes de usar esta
máquina.
Vestimenta adecuada
¡Advertencia!
Para reducir el riesgo de lesiones el
operador debe usar el equipo protector
adecuado.
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La ropa debe ser de confección fuerte y ajustada,
pero no tanto que impida
la completa libertad de
movimiento. Use pantalones largos hechos de un
material grueso para protegerse las piernas
contra el contacto con
ramas o matorrales. Para
reducir el riesgo de lesiones, use pantalones o
perneras con almohadillas de material resistente
a cortaduras. Evite el uso
de chaquetas sueltas,
bufandas, corbatas,
joyas, pantalones acampanados o con vueltas,
pelo largo suelto o cualquier cosa que pueda
engancharse en las
ramas, matorrales o piezas en movimiento de la
máquina. Sujétese el
pelo de modo que quede
sobre los hombros.
Es muy importante tener
una buena superficie de
apoyo para los pies. Póngase botas gruesas con
suela antideslizante.
Recomendamos las
botas de seguridad con
puntera de acero
Use un casco aprobado
para reducir el riesgo de
lesionarse la cabeza. El
ruido de la motosierra
puede dañar sus oídos.
Siempre use amortiguadores del ruido (tapones
u orejeras) para protegerse los oídos. Los
usuarios constantes y
regulares deben someterse con frecuencia a un
examen o control
auditivo.
Esté especialmente alerta y tenga
cuidado cuando se usa protectores de
oídos, ya que los mismos reducen la
posibilidad de oír señales de
advertencia (gritos, alarmas, etc.).
Nunca use una herramienta motorizada
a menos que se usen gafas de
seguridad bien colocadas con
protección superior y lateral adecuada,
que satisfagan la norma ANSI Z 87.1 (o
la norma nacional correspondiente).
Para reducir el riesgo de lesionarse la
cara, STIHL recomienda usar también
una careta o protector facial adecuado
sobre las gafas o anteojos de seguridad.
Siempre use guantes
cuando manipule la
máquina y la herramienta de corte. Los
guantes gruesos y antideslizantes mejoran el
manejo y ayudan a proteger las manos.
LA HERRAMIENTA MOTORIZADA
Para las ilustraciones y definiciones de
los componentes de la herramienta
motorizada, vea el capítulo sobre
"Piezas principales".
¡Advertencia!
Nunca modifique, de ninguna manera,
esta herramienta motorizada. Utilice
únicamente los accesorios y repuestos
suministrados por STIHL o expresamente autorizados por STIHL para
usarse con el modelo específico de
STIHL. Si bien es posible conectar a la
herramienta motorizada de STIHL ciertos accesorios no autorizados, su uso
puede ser, en la práctica, extremadamente peligroso.
Si la máquina experimenta cargas
excesivas para las cuales no fue
diseñada (por ejemplo, impactos
severos o una caída), siempre
asegúrese de que la máquina esté en
buenas condiciones antes de seguir con
el trabajo. Inspeccione específicamente
la integridad del sistema de combustible
(ausencia de fugas) y asegúrese de que
los controles y dispositivos de seguridad
funcionen como es debido. No siga
manejando esta máquina si está
dañada. En caso de dudas, pida que el
concesionario de servicio de STIHL la
revise.
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001BA115 KN
USO DE LA HERRAMIENTA
MOTORIZADA
Transporte de la herramienta
motorizada
¡Advertencia!
Para reducir el riesgo de sufrir lesiones
debido al contacto con la cadena de
aserrado, nunca transporte la herramienta motorizada con la cadena en
marcha. Siempre aplique el freno de la
cadena al llevar la motosierra por más
de unos pocos pasos.
¡Advertencia!
Siempre apague el motor y coloque la
funda sobre la cadena y la espada
antes de transportar la herramienta
motorizada por una distancia considerable. Cuando transporte la máquina en
un vehículo, sujétela firmemente para
impedir su vuelco, el derrame de combustible y el daño a la máquina.
Puede acarrearse solamente en
posición horizontal. Agarre el mango
delantero de una manera que mantenga
la máquina equilibrada horizontalmente.
Mantenga el silenciador caliente lejos de
su cuerpo y el accesorio de corte detrás
de usted.
Combustible
La herramienta motorizada STIHL utiliza
una mezcla de aceite-gasolina como
combustible (vea el capítulo
"Combustible" en el manual del
propietario).
¡Advertencia!
La gasolina es un combustible muy inflamable.
Si se derrama y arde a
causa de una chispa u
otra fuente de ignición,
puede provocar un
incendio y quemaduras graves o daños
a la propiedad. Tenga sumo cuidado
cuando manipule gasolina o la mezcla
de combustible. No fume cerca del combustible o la herramienta motorizada, ni
acerque ningún fuego o llama a ellos.
Puede escapar vapor inflamable del sistema de combustible.
Instrucciones para el llenado de
combustible
¡Advertencia!
Cargue de combustible su herramienta
motorizada en lugares al aire libre bien
ventilados. Siempre apague el motor y
deje que se enfríe antes de llenar de
combustible. Dependiendo del combustible utilizado, de las condiciones
climáticas y del sistema de ventilación
del tanque, es posible que se forme
vapor de gasolina a presión dentro del
tanque de combustible.
Para reducir el riesgo de quemaduras,
así como otras lesiones corporales
ocasionadas por los escapes de vapor
de gasolina y otras emanaciones, quite
la tapa de llenado de combustible de la
herramienta motorizada
cuidadosamente de modo que la
presión que se pueda haber acumulado
en el tanque se disipe lentamente.
Nunca quite la tapa de llenado de
combustible mientras el motor esté
funcionando.
Elija una superficie despejada para
llenar el tanque y aléjese 3 m (10 pies)
por lo menos del lugar en que lo haya
llenado antes de arrancar el motor.
Limpie todo el combustible derramado
antes de arrancar la máquina.
¡Advertencia!
Compruebe que no existen fugas de
combustible mientras
llena el tanque y durante
el funcionamiento de la
máquina. Si detecta
alguna fuga de combustible, no arranque el motor ni lo haga funcionar sin
antes reparar la fuga y limpiar el combustible derramado. Tenga cuidado de
no mancharse la ropa con combustible.
Si la mancha, cámbiesela
inmediatamente.
El tipo de tapa de llenado difiere con los
distintos modelos.
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001BA220 KN
001BA227 KN
001BA226 KN
Tapa sin herramientas con
empuñadura
¡Advertencia!
Para reducir el riesgo de derramar combustible y provocar un incendio debido a
una tapa de combustible mal apretada,
coloque la tapa en la posición correcta y
apriétela en la boca de llenado del
tanque.
Para hacer esto con esta tapa STIHL,
levante la empuñadura en la parte
superior de la tapa hasta dejarla vertical
a un ángulo de 90°. Inserte la tapa en la
boca de llenado del tanque, alineando
las marcas de posición en la
empuñadura de la tapa y en la boca del
tanque. Utilice la empuñadura para
oprimir la tapa firmemente hacia abajo
mientras la gira en sentido horario hasta
que tope (aprox. un cuarto de vuelta).
Doble la empuñadura
dejándola a ras con la
parte superior de la tapa.
Sujete la tapa y compruebe que esté bien
apretada. Si la empuñadura no queda
completamente a ras con
la tapa y el tope de la
empuñadura no encaja
en la hendidura correspondiente de la abertura
de llenado, o si la tapa
está suelta en la boca de
llenado, la tapa no está
debidamente asentada ni
apretada y es necesario
repetir los pasos previamente descritos.
Tapa desalineada, dañada o rota
NSi la tapa no encaja completamente
en la abertura cuando se alinean las
marcas de posición y/o si la tapa no
se aprieta debidamente al girarla, la
base de la tapa puede haber girado
prematuramente (con relación a la
parte superior) hasta la posición
cerrada. Tal desalineación puede
ser resultado de la manipulación,
limpieza o un intento incorrecto de
apriete.
A
izquierd
Base de la tapa en posición
cerrada (con espacio vacío)
a:
A
derecha:
Base de la tapa correctamente colocada para la
instalación
NPara volver a colocar la tapa en
posición abierta para instalarla,
gírela (con la empuñadura hacia
arriba) hasta que caiga
completamente en la abertura del
tanque. A continuación, gire la tapa
en sentido contrahorario hasta que
tope (aprox. 1/4 de vuelta) – esto
gira la base de la tapa a la posición
correcta. Luego gire la tapa en
sentido horario, cerrándola de
modo normal.
NSi aún no es posible apretar la tapa
de modo debido, la misma podría
estar averiada o rota; ponga la
máquina fuera de servicio de
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inmediato y llévela a un
concesionario STIHL autorizado
para repararla.
Tapa roscada
¡Advertencia!
Las vibraciones de la
máquina pueden aflojar
una tapa de combustible
que ha quedado mal
apretada, o simplemente
soltarla y derramar combustible. Para reducir el riesgo de
derrames e incendio, apriete la tapa de
llenado de combustible a mano tan firmemente como sea posible.
Para apretar las tapas con ranuras, se
puede usar el extremo de destornillador
de la llave combinada de STIHL u otra
herramienta similar.
Consulte también el capítulo
"Combustible" del Manual de
instrucciones para obtener información
adicional.
Antes de arrancar
Quite el protector de la cadena (la
funda) e inspeccione la motosierra para
verificar que está en buenas
condiciones de funcionamiento.
(Consulte la tabla de mantenimiento
cerca del final de este manual de
instrucciones.)
¡Advertencia!
Siempre revise la herramienta motorizada para comprobar que está en
buenas condiciones y que funciona
correctamente antes de arrancarla, en
particular el gatillo de aceleración y su
bloqueo, el interruptor de parada y la
herramienta de corte. El gatillo de aceleración debe moverse libremente y
siempre debe regresar a la posición de
marcha en vacío por la acción de
resorte. Nunca intente modificar los
controles o los dispositivos de
seguridad.
¡Advertencia!
No maneje nunca una herramienta
motorizada que esté dañada, mal ajustada o mantenida o que no fue armada
completa y debidamente.
¡Advertencia!
Asegúrese de que el casquillo de la
bujía esté firmemente colocado – un
casquillo suelto puede crear un arco
voltaico y encender los vapores del
combustible, provocando un incendio.
Para el armado de la espada y la
cadena, siga el procedimiento descrito
en el capítulo "Montaje de la espada y la
cadena" del manual de instrucciones. La
cadena Oilomatic, la espada y la rueda
dentada STIHL deben coincidir entre sí
en cuanto a calibre y paso. Antes de
cambiar la espada y la cadena, consulte
el capítulo "Especificaciones" en el
manual de instrucciones y la sección
"Contragolpe" y la "norma ANSI
B 175.1-2000 relativa a contragolpes de
las motosierras" más abajo.
¡Advertencia!
La tensión adecuada de la cadena es
extremadamente importante. Para evitar el ajuste inadecuado, ejecute los
procedimientos de tensado tal como se
describen en su manual. Para fijar la
espada en su lugar, siempre asegúrese
que la tuerca o tuercas hexagonales
para la cubierta del piñón quedan firmemente apretadas después de tensar la
cadena. Nunca arranque la sierra mientras la cubierta del piñón está suelta.
Compruebe la tensión de la cadena una
vez más después de apretar la tuerca o
tuercas y de allí en adelante en intervalos regulares (cada vez que se apague
la sierra). Si durante el corte la cadena
llega a aflojarse, apague el motor y
ajuste la tensión. ¡Nunca trate de ajustar la cadena mientras el motor está
funcionando!
Mantenga los mangos limpios y secos
en todo momento; es particularmente
importante mantenerlos libres de
humedad, aceite, combustible, grasa o
resinas para garantizar que la máquina
pueda empuñarse firmemente para
mantenerla bajo control seguro.
Arranque
¡Advertencia!
Para reducir la posibilidad de incendios
y lesiones por quemaduras, arranque el
motor al aire libre, por lo menos 3 m
(10 pies) del lugar en que lo haya
llenado.
Ponga en marcha y maneje su
motosierra sin ayuda de nadie. Para las
instrucciones específicas de arranque,
vea la sección correspondiente del
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manual de instrucciones. Los métodos
correctos de arranque reducen el riesgo
de sufrir lesiones.
¡Advertencia!
Para reducir el riesgo de sufrir lesiones
debido a las fuerzas de reacción y / o al
contacto con la cadena de aserrado,
aplique el freno de la cadena antes de
arrancar la motosierra.
¡Advertencia!
Nunca arranque el motor por lanzamiento de la máquina. Este método es
muy peligroso porque usted puede perder el control de la motosierra.
Hay dos métodos recomendados para
arrancar la motosierra.
Con el primermétodo recomendado, la
motosierra se arranca apoyada en el
suelo. Asegúrese que el freno de la
cadena esté aplicado (vea el capítulo
"Freno de la cadena" en el manual de
instrucciones) y apoye la motosierra
sobre terreno firme u otra superficie
sólida en un lugar abierto. Mantenga el
equilibrio y elija un buen punto de apoyo
para los pies.
Agarre el mango delantero firmemente
con la mano izquierda y haga presión
hacia abajo. Para las sierras con mango
trasero que queda a nivel del suelo,
ponga la punta del pie derecho dentro
del mango trasero y haga presión hacia
abajo. Con la mano derecha tire
lentamente del mango de arranque
hasta que sienta una resistencia
definitiva y en seguida dele un tirón
fuerte y rápido.
El segundométodo recomendado para
arrancar la motosierra le permite hacerlo
sin colocarla en el suelo. Asegúrese que
el freno de la cadena esté aplicado,
sujete la manija delantera de la
motosierra firmemente con la mano
izquierda. Mantenga el brazo sobre el
mango delantero en posición firme
(recta). Sujete el mango trasero de la
motosierra bien apretado entre las
piernas un poco más arriba de las
rodillas. Mantenga el equilibrio y elija un
buen punto de apoyo para los pies. Con
la mano derecha tire lentamente del
mango de arranque hasta que sienta
una resistencia definitiva y en seguida
dele un tirón fuerte y rápido.
¡Advertencia!
Asegúrese que la espada y la cadena
estén alejadas de su persona y de las
demás obstrucciones y objetos, incluyendo el suelo. Después de arrancar, la
velocidad del motor con el bloqueo de
aceleración de arranque activado será
lo suficientemente rápida para que el
embrague engrane el piñón y, si el freno
de la cadena no está activado, hará que
gire la cadena. Si el cuadrante superior
de la punta de la espada choca contra
algún objeto, se puede producir un contragolpe (vea la sección sobre fuerzas
reactivas). Para reducir el riesgo, siempre active el freno de la cadena antes
de arrancar el motor. Nunca intente
arrancar la motosierra mientras la
espada está dentro de una ranura de
corte o entalla.
Tan pronto arranque, accione
inmediatamente por un breve momento
el gatillo de aceleración para
desconectarlo de la posición de
arranque y permitir que la velocidad del
motor se reduzca al valor de marcha en
vacío.
¡Advertencia!
Cuando tire del mango de arranque, no
enrolle la cuerda de arranque alrededor
de la mano. No deje que el mango retroceda bruscamente, sino guíe la cuerda
de arranque para que se enrolle debidamente. Si no ejecuta este procedimiento
puede lastimarse la mano o los dedos y
también dañar el mecanismo de
arranque.
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Ajustes importantes
¡Advertencia!
Para reducir el riesgo de lesiones personales debido a la pérdida de control y
/ o al contacto con la herramienta de
corte en movimiento, no use una
máquina cuyo régimen de marcha en
vacío está mal regulado. Cuando el
ralentí está correctamente regulado, la
herramienta de corte no debe moverse.
Para instrucciones acerca de cómo
ajustar el régimen de marcha en vacío,
vea la sección correspondiente del
manual de instrucciones.
Si no puede regular correctamente el
ralentí, pida a su concesionario STIHL
que revise la herramienta motorizada y
haga los ajustes o reparaciones
correspondientes.
Durante el trabajo
Sujeción y control de la herramienta
motorizada
Al trabajar, siempre sujete la máquina
firmemente con ambas manos en los
mangos. Cierre firmemente los dedos y
pulgares sobre los mangos.
amortiguar mejor las fuerzas de empuje
y tirones, así como las fuerzas de
contragolpe de la sierra, sin perder el
control (vea la sección sobre fuerzas
reactivas).
¡Advertencia!
Para reducir el
riesgo de lesiones
graves o mortales
para usted o los
espectadores
debido a la pérdida de control, nunca
maneje la sierra con una sola mano. Es
más difícil controlar las fuerzas reactivas y evitar el patinaje o rebote de la
espada y la cadena sobre la rama o
tronco. Incluso en el caso de sierras
compactas diseñadas para usarse en
espacios estrechos, el manejo con una
sola mano es peligroso porque el operador puede perder el control de la
máquina.
¡Advertencia!
Para reducir el riesgo de lesionarse,
mantenga las manos y los pies alejados
de la herramienta de corte. No toque
nunca con las manos ni con cualquier
parte del cuerpo una herramienta de
corte en movimiento.
¡Advertencia!
Mantenga los pies bien apoyados y
equilibrados en todo momento. Se debe
tener cuidado especial cuando las condiciones del suelo son resbaladizas
(suelo húmedo, nieve) y en terreno difícil y con mucha vegetación. Para evitar
tropezarse, esté atento a los obstáculos
ocultos tales como tocones, raíces,
hoyos y zanjas. Existe un peligro mayor
de resbalarse en los troncos recién descortezados. Para obtener un punto de
apoyo seguro, quite las ramas caídas,
los matorrales y el material cortado. Sea
sumamente precavido cuando trabaje
en declives o terreno irregular.
¡Advertencia!
Proceda con sumo cuidado cuando trabaje en condiciones climáticas
húmedas o frías (lluvia, nieve, hielo).
Interrumpa el trabajo cuando hay condiciones de mucho viento, tormenta o
lluvia intensa.
La mano derecha debe sujetar el mango
trasero. Esto también corresponde a
personas zurdas. Con las manos en
esta posición, puede oponer y
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¡Advertencia!
Si bien es necesario mantener los terceros lejos de la motosierra en marcha,
nunca trabaje solo. Manténgase a una
distancia que le permita comunicarse
con otras personas en caso de necesitar ayuda.
¡Advertencia!
Para reducir el riesgo de lesiones causadas por la pérdida del control, nunca
trabaje sobre una escalera o cualquier
otra superficie de soporte poco seguro.
Nunca mantenga la máquina a una
altura más arriba de los hombros. No
trate de alcanzar más lejos de lo debido.
¡Advertencia!
Nunca trabaje en un árbol a menos que
tenga la capacitación profesional para
ese tipo de trabajo, disponga de la
seguridad adecuada (tal como un sistema de aparejos y correas o una
plataforma aérea de trabajo), tenga las
dos manos libres para manejar la motosierra en un espacio estrecho y haya
tomado las medidas de precaución para
evitar ser lesionado por las ramas que
caen.
Coloque la motosierra en una posición
tal que el cuerpo esté lejos del accesorio
de corte cuando el motor está
funcionando. Sitúese a la izquierda del
corte mientras está tronzando.
Nunca ejerza presión sobre la sierra
cuando llegue al final del corte. La
presión puede hacer que la espada y la
cadena en movimiento salten fuera de la
ranura de corte o entalla, perdiéndose el
control y golpeando al operador o algún
otro objeto. Si la cadena en movimiento
golpea contra otro objeto, una fuerza
reactiva puede hacer que la cadena
golpee al operador.
Condiciones de trabajo
Maneje y arranque su herramienta
motorizada solamente al aire libre en un
lugar bien ventilado. Manéjela
solamente en condiciones de buena
visibilidad y a la luz del día. Trabaje con
mucho cuidado.
¡Advertencia!
La motosierra es una máquina para una
sola persona. No deje que otras personas estén en el lugar de trabajo, aun
durante el arranque. Apague el motor
inmediatamente si se le aproxima
alguna persona.
¡Advertencia!
Tan pronto arranca, este
producto genera vapores
de escape tóxicos que
contienen productos químicos (tales como
hidrocarburos sin quemar y monóxido del carbono,
incluyendo el benceno) considerados
como causantes de enfermedades respiratorias, cáncer, defectos de
nacimiento u otra toxicidad reproductora. Algunos de estos gases (por ej.,
monóxido de carbono) pueden ser incoloros e inodoros. Para reducir el riesgo
de sufrir lesiones graves o mortales por
respirar gases tóxicos, nunca haga funcionar la máquina puertas adentro o en
lugares mal ventilados. Si debido a la
falta de ventilación adecuada los gases
de escape se concentran, elimine los
obstáculos de la zona de trabajo para
obtener ventilación adecuada antes de
proceder y/o tome descansos frecuentes para permitir la disipación de los
gases antes de que se puedan
concentrarse.
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¡Advertencia!
La inhalación de ciertos polvos, especialmente los polvos orgánicos, tales
como el moho o polen, puede provocar
reacciones alérgicas o asmáticas en las
personas sensibles. La inhalación repetida o de grandes cantidades de polvo u
otros contaminantes del aire, especialmente los de partículas pequeñas
puede causar enfermedades respiratorias o de otro tipo. Esto incluye el polvo,
especialmente de las maderas duras,
pero también de algunas maderas blandas, tales como el cedro rojo occidental.
Controle el polvo en su fuente, siempre
que sea posible. Utilice buenas prácticas de trabajo, tal como siempre cortar
con una cadena bien afilada (que produce virutas de madera en vez de polvo
fino) y trabajar de manera que el viento
o el proceso de corte dirige el polvo producido por la herramienta motorizado
en sentido opuesto del operador.
Observe las recomendaciones emitidas
por EPA/OSHA/NIOSH y las asociaciones de trabajo y los sindicatos con
respecto al polvo ("materia particulada"). Cuando sea imposible eliminar
significativamente la inhalación del
polvo, es decir mantener el nivel cerca
del valor ambiente, el operador y las
personas que se encuentren en la cercanía siempre deberán usar un
respirador aprobado por NIOSH/MSHA
para el tipo de polvo presente en el
lugar.
¡Advertencia!
La aspiración del polvo de asbesto es
peligrosa y puede causar lesiones graves o mortales, enfermedades de las
vías respiratorias o cáncer. El uso y la
eliminación de los productos que contienen asbesto están estrictamente
reglamentados por OSHA y el Organismo para la Protección del Medio
Ambiente (EPA) de los EE.UU. Si por
cualquier motivo cree que está cortando
asbesto, póngase en contacto inmediatamente con su empleador o un
representante de OSHA local.
Instrucciones de manejo
¡Advertencia!
No maneje la herramienta motorizada
usando el bloqueo de acelerador para
arranque, pues no tendrá control de la
velocidad del motor.
En caso de emergencia, apague el
motor inmediatamente – mueva el
control deslizante / interruptor de parada
a 0 o STOP
¡Advertencia!
Siempre apague el motor antes de apoyar la motosierra en el suelo.
¡Advertencia!
La cadena de aserrado sigue en marcha por un rato después que se suelta
el gatillo de aceleración (efecto de
volante).
Al aumentar la velocidad del motor con
la cadena de aserrado bloqueada se
aumenta la carga y se provoca el
patinaje continuo del embrague. Esto
puede ocurrir si se acciona el acelerador
por más de unos pocos segundos con la
cadena aprisionada en la ranura de
corte o cuando el freno de la cadena
está aplicado. Esto puede causar
sobrecalentamiento y daño de los
componentes importantes (por ejemplo,
el embrague y las piezas de plástico
polimérico de la caja) – lo que a su vez
aumenta el riesgo de lesiones causadas
por el movimiento de la cadena de sierra
cuando el motor está a velocidad de
marcha en vacío.
¡Advertencia!
Su motosierra está equipada con un
gancho retenedor para la cadena. Está
diseñado para reducir el riesgo de lesiones personales en el caso de que la
cadena se desprenda o corte. De vez
en cuando el gancho puede dañarse o
salirse. Para reducir el riesgo de lesiones personales, no maneje la
motosierra si el gancho de la cadena
está dañado o se ha perdido.
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¡Advertencia!
Inspeccione los elementos antivibración
periódicamente. Sustituya de inmediato
los que estén dañados, rotos o muy
desgastados, ya que pueden causar la
pérdida del control de la sierra. Si usted
siente una "esponjosidad" en la sierra,
aumento de la vibración o de tendencia
al "hundimiento" durante el manejo normal, puede indicar algún daño, rotura o
exceso de desgaste. Los elementos
antivibración siempre deben sustituirse
en juegos. Ante cualquier duda acerca
de la sustitución de los elementos antivibración, consulte a su concesionario
de servicio STIHL.
¡Advertencia!
La motosierra no está diseñada para
ser utilizada como palanca o pala en las
ramas, raíces u otros objetos. El chocar
contra este tipo de objetos puede dañar
el accesorio de corte o el sistema AV.
¡Advertencia!
Mientras está cortando con la sierra,
asegúrese que la cadena no toque ninguna materia extraña como por ejemplo
rocas, cercas, clavos y cosas por el
estilo. Estos objetos pueden salir lanzados al aire y dañar la cadena de la sierra
o hacer que ésta retroceda o rebote.
¡Advertencia!
Nunca modifique el silenciador. La
modificación del silenciador podría causar el aumento del calor irradiado, de
las chispas y del nivel de ruido, lo que
aumentará el riesgo de incendios, lesiones por quemadura o la pérdida
auditiva. Además, se podría dañar permanentemente el motor. Haga reparar
el silenciador únicamente por el concesionario de servicio STIHL.
¡Advertencia!
El silenciador y otros componentes del
motor (por ej., aletas del cilindro, bujía)
se calientan durante el funcionamiento
y permanecen calientes por un buen
rato después de apagar el motor. Para
reducir el riesgo de quemaduras, no
toque el silenciador ni los otros componentes mientras están calientes.
Mantenga limpia la zona alrededor del
silenciador. Quite el lubricante excesivo
y toda la basura tal como las agujas de
pinos, ramas u hojas. Deje que el motor
se enfríe apoyado sobre una superficie
de hormigón, metal, suelo raso o
madera maciza (por ej., el tronco de un
árbol caído) lejos de cualquier sustancia
combustible.
¡Advertencia!
Una caja de cilindro dañada o mal instalada, o una envuelta del silenciador
dañada o deformada, puede perjudicar
el proceso de enfriamiento del silenciador. Para reducir el riesgo de incendio o
lesiones por quemadura, no continúe
trabajando con una caja de cilindro
dañada o mal instalada, o una envuelta
del silenciador dañada o deformada.
El silenciador tiene un chispero
diseñado para reducir el riesgo de
incendio debido a la emisión de
partículas calientes. Nunca haga
funcionar la unidad sin tener instalado el
chispero. Si la mezcla de gasolina y
aceite está correcta (no es demasiado
rica), en condiciones normales el
chispero quedará limpio como resultado
del calor del silenciador y no necesitará
servicio ni mantenimiento. Si el
rendimiento de su máquina comienza a
disminuir y sospecha que las rejillas
están obstruidas, haga reparar el
silenciador por un concesionario de
servicio STIHL. Para ciertas
aplicaciones, las leyes o los
reglamentos estatales o federales
pueden requerir el uso de un chispero
en buenas condiciones. Consulte la
sección "Mantenimiento, Reparación y
Almacenamiento" de estas Medidas de
seguridad. Recuerde que el riesgo de
incendios de matorrales o forestales es
mayor durante las estaciones calurosas
y secas.
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¡Advertencia!
Algunas herramientas
motorizadas STIHL están
equipadas con un convertidor catalítico, el que
está diseñado para redu-
cir las emisiones de
escape del motor mediante un proceso
químico en el silenciador. Debido a este
proceso, el silenciador no se enfría tan
rápidamente como los del tipo convencional cuando el motor regresa a
marcha en vacío o es apagado. Para
reducir el riesgo de incendios y lesiones
por quemadura al usar un convertidor
catalítico, apoye siempre su herramienta motorizada en posición vertical y
no la coloque nunca donde el silenciador quede cerca de material seco como
por ejemplo matorrales, pasto, virutas
de madera u otros materiales combustibles mientras todavía está caliente.
Fuerzas reactivas, incluido el
contragolpe
¡Advertencia!
Las fuerzas reactivas pueden ocurrir en
cualquier momento mientras la cadena
está girando. Las fuerzas reactivas pueden causar lesiones graves.
La gran fuerza utilizada para cortar
madera puede cambiar de sentido y
actuar contra el operador. Si una
cadena en movimiento se detiene
repentinamente al tocar un objeto sólido
como por ejemplo un tronco o rama, o
bien queda aprisionada, pueden
presentarse de inmediato las fuerzas
reactivas. Esas fuerzas reactivas
pueden causar la pérdida del control, lo
que a su vez puede causar lesiones
graves o mortales. Una buena
comprensión de las causas de estas
fuerzas reactivas puede ayudarle a
evitar el elemento de sorpresa y la
pérdida del control. Las sorpresas
repentinas contribuyen a los accidentes.
Las fuerzas reactivas más comunes
son:
–contragolpe,
–rechazo,
–tirón.
Contragolpe:
El contragolpe puede
ocurrir cuando la cadena
en movimiento cerca del
cuadrante superior de la
punta de la espada toca
un objeto sólido o queda
aprisionada.
La reacción de la fuerza de corte de la
cadena causa una fuerza de rotación en
la motosierra en sentido contrario al
movimiento de la cadena. Esto puede
lanzar repentinamente la espada hacia
arriba y hacia atrás describiendo un arco
descontrolado, principalmente en el
plano de la espada. En algunas
circunstancias de corte, la espada se
desplaza hacia el operador causándole
lesiones graves o mortales.
Puede ocurrir un contragolpe, por
ejemplo,cuando la cadena cerca del
cuadrante superior de la punta de la
espada choca contra la madera o queda
aprisionada al cortar una rama, o si se la
usa incorrectamente al comenzar a
penetrar o avanzar en el corte.
Cuanto mayor la fuerza de la reacción
de rebote, tanto más difícil para el
operador controlar la sierra. Son
muchos los factores que afectan la
producción de contragolpes, así como
su intensidad. Estos incluyen la
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velocidad de la cadena, la velocidad a la
que la espada y la cadena tocan el
objeto, el ángulo de contacto, la
condición de la cadena y otros factores.
El tipo de espada y de cadena de la
sierra es un factor importante en la
ocurrencia y la fuerza del contragolpe.
Algunos tipos de cadenas y espadas de
STIHL están diseñados para reducir las
fuerzas de contragolpe. STIHL
recomienda el uso de espadas de
contragolpe reducido y cadenas de bajo
contragolpe.
Norma ANSI B 175.1-2000 relativa al
contragolpe de las motosierras
La sección 5.11 de la norma ANSI
B 175.1-2000 establece ciertos criterios
de comportamiento y diseño con
respecto al contragolpe de las
motosierras.
Para cumplir con lo estipulado en la
sección 5.11 de la norma ANSI B 175.12000:
a) las sierras con una cilindrada
inferior a 62 cm³ (3,8 pulg³)
–deben tener, en su condición
original, un ángulo de contragolpe
de 45° calculado por computadora
cuando están equipadas con ciertos
accesorios de corte,
–y deben tener por lo menos dos
dispositivos para reducir el riesgo
de lesiones por contragolpe, tales
como un freno de la cadena,
cadena de bajo contragolpe,
espada de contragolpe reducido,
etc.
b) las sierras con una cilindrada de
62 cm³ (3,8 pulg³) y más
–deben tener por lo menos un
dispositivo para reducir el riesgo de
lesiones por contragolpe, tal como
un freno de la cadena, cadena de
bajo contragolpe leve, espada de
contragolpe reducido, etc.
Los ángulos calculados por
computadora para las sierras con
cilindrada inferior a 62 cm³ (3,8 pulg³) se
miden aplicando un programa
informático para probar los resultados
de una máquina experimental de
contragolpes.
¡Advertencia!
Los ángulos calculados por computadora indicados en la sección 5.11 de la
norma ANSI B 175.1-2000 pueden no
tener ninguna relación con los ángulos
reales de rotación de contragolpe de la
espada que pueden ocurrir en situaciones reales de corte.
Además, las características diseñadas
para reducir la posibilidad de lesiones
causadas por contragolpes pueden
perder algo de su eficiencia cuando no
están en sus condiciones originales,
especialmente si no han sido
mantenidas correctamente. El
cumplimiento de la sección 5.11 de la
norma ANSI B 175.1-2000 no significa
automáticamente que en el caso real de
contragolpe la espada y la cadena
girarán en un ángulo no mayor que 45°.
¡Advertencia!
Para que los motores con una cilindrada
inferior a 62 cm³ (3,8 pulg³) cumplan
con los requisitos de ángulo calculado
por computadora de contragolpe indicados en la sección 5.11 de la norma
ANSI B 175.1-2000, se deben utilizar
únicamente los accesorios de corte
siguientes:
–las combinaciones de espadas y
cadenas que aparecen en la
sección "Especificaciones" del
manual de instrucciones u
–otras combinaciones de espadas y
cadenas de repuesto marcadas de
acuerdo con la norma para usarse
con el motor o
–una cadena de repuesto designada
como "cadena de aserrado de bajo
contragolpe".
Consulte la sección sobre "Cadena de
aserrado de bajo contragolpe y espadas
de contragolpe reducido"
Dispositivos para reducir el riesgo de
lesiones por contragolpe
STIHL recomienda el uso del freno
rápido de cadena Quickstop STIHL en
las motosierras con espadas de
contragolpe reducido y cadenas de bajo
contragolpe con etiquetas verdes.
¡Advertencia!
Para reducir el riesgo de lesionarse, no
usar la motosierra si el freno de la
cadena no funciona correctamente.
Lleve la motosierra a un centro de servicio de STIHL en su localidad. No use la
sierra hasta haber corregido la avería.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
83
español / EE.UU
001BA174 KN
Freno rápido de la cadena Quickstop
de STIHL
STIHL ha desarrollado un sistema de
parada de la cadena para reducir el
riesgo de lesiones en ciertas situaciones
de contragolpe. Se llama freno rápido de
la cadena Quickstop.
Todas las motosierras STIHL están
provistas de un freno de cadena
Quickstop que puede activarse por
inercia. Si las fuerzas de contragolpe
son suficientemente altas, el protector
de mano se acelera hacia la punta de la
espada aun sin contacto con la mano.
Vea el capítulo titulado "Freno de la
cadena" en el manual de instrucciones.
¡Advertencia!
Nunca maneje la motosierra sin tener
instalado el protector delantero de la
mano. En una situación de contragolpe
este protector ayuda a proteger la mano
izquierda y otras partes del cuerpo.
Además, al quitar el protector de la
mano en una sierra equipada con freno
de la cadena Quikstop éste quedará
desactivado.
¡Advertencia!
Ni el freno Quickstop ni ningún otro dispositivo de freno de la cadena impide el
contragolpe. Estos dispositivos están
diseñados para reducir el riesgo de
lesiones por contragolpe, si se activan,
en ciertas situaciones de contragolpe.
Para que el freno Quickstop reduzca el
riesgo de lesiones por contragolpe,
debe estar bien cuidado y en buenas
condiciones de funcionamiento. Vea el
capítulo del manual de instrucciones
intitulado "Freno de la cadena" y la sección "Mantenimiento, reparación y
almacenamiento" al final de estas precauciones de seguridad. Además, debe
haber distancia suficiente entre la
espada y el operador para que el freno
Quickstop tenga tiempo suficiente para
activarse y detener la cadena antes del
posible contacto con el operador.
¡Advertencia!
Un freno de la cadena mal cuidado
puede aumentar el tiempo necesario
para detener la cadena después de la
activación, o simplemente puede no
activarse.
¡Advertencia!
Nunca maneje la motosierra sobre la
velocidad de marcha en vacío durante
más de 3 segundos cuando el freno de
la cadena está activado, o si la cadena
está aprisionada o atrapada de otra
manera en la ranura de corte. El patinaje del embrague puede causar calor
excesivo, con el consiguiente daño de
la caja del motor, embrague y componente lubricador, y puede obstaculizar
el funcionamiento del freno de la
cadena. Si el embrague ha patinado por
más de 3 segundos, deje que la caja del
motor se enfríe antes de proceder, y
pruebe el funcionamiento del freno de la
cadena tal como se describe en el capítulo "freno de la cadena" del manual de
instrucciones. Asegúrese también que
la cadena no gira a la velocidad de marcha en vacío (vea las instrucciones
anteriores "Ajustes importantes").
Cadena de aserrado de bajo
contragolpe y espadas de
contragolpe reducido
STIHL ofrece una variedad de espadas
y cadenas. Las espadas de contragolpe
reducido y las cadenas de bajo
contragolpe de STIHL están diseñadas
para reducir el riesgo de lesiones
causadas por contragolpe. Otras
cadenas están diseñadas para obtener
un rendimiento de corte mayor o para
facilitar el afilado, pero pueden producir
una mayor tendencia a los contragolpes.
STIHL desarrolló un sistema de
codificación por color para ayudar a
identificar las espadas de contragolpe
reducido y las cadenas de bajo
contragolpe. Los accesorios de corte
con etiquetas de aviso verdes o
84
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
español / EE.UU
etiquetas de color verde en el
empaquetado están diseñados para
reducir el riesgo de lesiones por
contragolpe. Al combinar motores
dotados de etiquetas verdes con una
cilindrada inferior a 62 cm³ (3,8 pulg³)
con espadas y cadenas con etiquetas
verdes se cumple con los
requerimientos de ángulo de
contragolpe calculado por computadora
estipulados en la norma ANSI B 175.12000, cuando los productos se
encuentran en su condición original. Los
productos con etiquetas amarillas son
para los usuarios que tienen
necesidades de corte extraordinarias,
además de experiencia y capacitación
especializada para hacer frente a los
contragolpes.
STIHL recomienda el uso de sus
espadas de contragolpe reducido de
etiqueta verde, cadenas de bajo
contragolpe con etiqueta verde y un
freno rápido de cadena Quickstop
STIHL, tanto para los usuarios con
experiencia como para aquéllos que
carezcan de ella en la utilización de
motosierras.
Sírvase pedir a su concesionario STIHL
que le proporcione la combinación
apropiada de espada / cadena para el
motor de su motosierra, con el fin de
reducir las lesiones por contragolpe. Las
espadas y cadenas con etiquetas
verdes se recomiendan para todas las
motosierras.
¡Advertencia!
El uso de otras combinaciones de espadas / cadenas no indicadas puede
aumentar las fuerzas de contragolpe y
como consecuencia el riesgo de lesiones por contragolpe. Existe la
posibilidad de que después de la publicación de esta información se
desarrollen nuevas combinaciones de
espadas y cadenas, las que, en combinación con ciertos motores, cumplirán
con lo estipulado en § 5.11 de la norma
ANSI B 175.1-2000. Consulte a su concesionario STIHL sobre dichas
combinaciones.
¡Advertencia!
Las espadas de contragolpe reducido y
las cadenas de bajo contragolpe no
impiden el contragolpe, sino están diseñadas para reducir el riesgo de lesiones
por contragolpe. Las puede adquirir a
través de su concesionario STIHL.
¡Advertencia!
Aunque su sierra esté equipada con un
Quickstop, una espada de contragolpe
reducido y / o una cadena de bajo contragolpe, eso no elimina el riesgo de
lesionarse por contragolpe. Por lo tanto,
respete siempre todas las medidas de
seguridad para evitar situaciones de
contragolpe.
Cadena de bajo contragolpe
Algunos tipos cadenas de aserrado
tienen componentes especialmente
diseñados para reducir la fuerza de
contragolpe al contacto de la punta.
STIHL ha desarrollado una cadena de
bajo contragolpe para su motosierra.
Una "cadena de bajo contragolpe" es
una cadena que satisface los
requerimientos de funcionamiento
referentes al contragolpe estipulados en
la § 5.11.2.4 de la norma ANSI B 175.12000 (requerimientos de seguridad para
las motosierras de gasolina) cuando se
prueba en un grupo representativo de
motosierras con cilindrada inferior a 62
cm³ (3,8 pulg³), como se especifica en la
norma ANSI B 175.1-2000.
¡Advertencia!
Existen combinaciones posibles de
motor y espada con las que se puede
usar cadenas de aserrado de bajo contragolpe y que no han sido
específicamente certificadas como
satisfactorias con respecto al ángulo de
contragolpe de 45° calculado por computadora indicado en la sección 5.11 de
la norma ANSI B 175.1-2000. Algunas
cadenas de bajo contragolpe no han
sido probadas con todas las combinaciones de motor y espada posibles.
¡Advertencia!
Una cadena roma o mal afilada puede
reducir o anular los efectos de las
características del diseño que deben
reducir la fuerza de contragolpe. Una
reducción o afilado incorrecto de los
calibradores de profundidad o la alteración de la forma de las cuchillas puede
aumentar la posibilidad y la fuerza
potencial de un contragolpe. Siempre
corte con una cadena bien afilada.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
85
español / EE.UU
001BA037 KN
A
Espadas de contragolpe reducido
Las espadas de contragolpe reducido
STIHL con etiqueta verde están
diseñadas para reducir el riesgo de
lesiones por contragolpe cuando se
usan con las cadenas de bajo
contragolpe STIHL con etiqueta verde.
¡Advertencia!
Cuando se usan con otras cadenas más
agresivas, estas espadas pueden ser
menos eficaces en reducir el
contragolpe.
¡Advertencia!
Para tener una motosierra debidamente
equilibrada y cumplir con los requisitos
de la sección 5.12.1 de la norma ANSI
B 175.1-2000, utilice exclusivamente
espadas con las longitudes indicadas
en el capítulo de especificaciones del
manual de instrucciones para el motor
de su motosierra.
Guías en forma de arco
¡Advertencia!
No instale una guía en forma de arco en
ninguna de las motosierras de STIHL.
Toda motosierra equipada con una guía
en forma de arco es potencialmente una
herramienta muy peligrosa. El riesgo de
contragolpe aumenta con una guía en
forma de arco debido a la mayor superficie de contacto de contragolpe.
Cuando se usa una guía en forma de
arco, la cadena de bajo contragolpe no
reducirá significativamente el riesgo de
lesiones por contragolpe.
Para evitar el contragolpe
La mejor protección contra lesiones
personales como resultado de un
contragolpe es evitar las situaciones de
contragolpe:
1. Sujete la motosierra firmemente
con ambas manos. No la suelte.
2. Sea consciente de la ubicación de
la punta de la espada en todo
momento.
3. Nunca deje que la punta de la
espada haga contacto con ningún
objeto. No corte ramas con la punta
de la espada. Preste especial
atención al trabajar cerca de vallas
de alambre y cuando corte ramas
pequeñas y duras, matorrales
pequeños y arbolitos que pueden
fácilmente quedar enredados en la
cadena.
4. No extienda los brazos más allá de
lo necesario.
5. No corte más arriba de la altura de
los hombros.
6. Empiece a cortar y continúe
trabajando a máxima aceleración.
7. Corte solamente un tronco a la vez.
8. Tenga sumo cuidado cuando
vuelva a entrar a un corte
previamente iniciado.
9. No intente cortar por penetración de
la sierra si no tiene experiencia en
ese tipo de corte.
10. Esté alerta al desplazamiento del
tronco o a otras fuerzas que puedan
causar el cierre del corte y el
aprisionamiento de la cadena.
11. Cuide bien la cadena de la sierra.
Siempre corte con una cadena bien
afilada y correctamente tensada.
12. Sitúese a un lado de la trayectoria
de corte de la motosierra.
A = Tirón
El tirón ocurre cuando la cadena en la
parte inferior de la espada se detiene
repentinamente cuando queda
aprisionada, retenida o choca con algún
objeto extraño en la madera. Como
reacción, la cadena tira de la sierra
hacia adelante haciendo que el
operador pierda el control de la
máquina.
El tirón frecuentemente ocurre cuando
la púa de tope de la sierra no está
firmemente sujeta contra el árbol o
rama, y cuando la cadena no está
girando a velocidad máxima antes de
hacer contacto con la madera.
¡Advertencia!
Tenga sumo cuidado cuando corte
arbolitos y matorrales pequeños que
pueden enredarse fácilmente en la
cadena, ser lanzados contra usted o
hacerle perder el equilibrio.
86
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
español / EE.UU
001BA038 KN
B
001BA088 LÄ
2
/
1
2
11
/
1
2
Para evitar los tirones
1. Siempre empiece el corte con la
cadena girando a velocidad máxima
y la púa de tope en contacto con la
madera.
2. El tirón también se puede reducir
colocando cuñas para abrir la
entalla o el corte.
B = Rechazo
El rechazo ocurre cuando la cadena en
la parte superior de la espada se detiene
repentinamente cuando queda
aprisionada, retenida o choca con algún
objeto extraño en la madera. Como
reacción, la cadena impulsa
repentinamente la sierra hacia atrás
contra el operador y puede causar la
pérdida del control de la sierra. El
rechazo frecuentemente ocurre cuando
se utiliza la parte superior de la espada
para hacer los cortes.
Para evitar el rechazo
1. Esté alerta a las fuerzas o
situaciones que pueden permitir
que el material aprisione la parte
superior de la cadena.
2. No corte más de un tronco a la vez.
3. No tuerza la sierra cuando retire la
espada de un corte con penetración
o un corte por debajo, porque la
cadena puede quedar aprisionada.
Técnicas de corte
Tala
La tala consiste en cortar un árbol hasta
que caiga.
Antes de talar, estudie cuidadosamente
todas las condiciones que pueden
afectar la dirección de la caída.
¡Advertencia!
Existen varios factores que pueden
afectar y cambiar el sentido previsto de
caída, por ej., el sentido y la velocidad
del viento, la inclinación natural del
árbol, los árboles y obstáculos adyacentes, el terreno en declive, la estructura
de ramas de un solo lado, la estructura
de la madera, la pudrición, el peso de la
nieve, etc. Para reducir el riesgo de
sufrir lesiones graves o mortales, tanto
para usted como para los demás, examine en busca de estas condiciones
antes de comenzar el trabajo y manténgase alerta a cualquier cambio en el
sentido durante la caída del árbol.
¡Advertencia!
Siempre observe la condición general
del árbol. Los usuarios sin experiencia
jamás deberán intentar cortar árboles
que tengan el interior podrido, que
estén inclinados o bajo tensión. Existe
un gran riesgo de que estos árboles se
partan o rasguen durante el corte y causen lesiones graves o mortales al
operador u otras personas en las inmediaciones. Siempre busque las ramas
quebradas o muertas que puedan soltarse con la vibración y caerle encima.
Cuando esté talando en una ladera,
siempre que sea posible sitúese en el
lado cuesta arriba.
Instrucciones para la tala
Durante la tala, mantenga una distancia
de por lo menos 2 veces y media de lo
largo del árbol con respecto a la persona
más cercana.
Cuando esté talando cerca de caminos,
vías férreas, cables eléctricos, etc.,
tome medidas de precaución
adicionales. Antes de comenzar los
trabajos de corte, avise a la policía,
empresas de servicios públicos o
autoridades del ferrocarril.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
87
español / EE.UU
B
001BA040 KN
A
45°
45°
B
001BA146 KN
001BA153 KN
001BA143 KN
C
C
¡Advertencia!
El ruido del motor puede apagar las llamadas de advertencia.
Ruta de escape
Primero, despeje todas las ramas y
matorrales de la base del árbol y lugar
de trabajo y limpie la parte inferior con
un hacha.
Después, establezca dos rutas de
escape (B) y retire todos los obstáculos.
Estas rutas por lo general deben ser en
sentido contrario a la dirección prevista
de la caída del árbol (A) y en un ángulo
aproximado de 45°. Coloque todas las
herramientas y equipo a una distancia
segura lejos del árbol, pero no en las
rutas de escape.
Raíces de zancos grandes
Si el árbol tiene raíces de zancos
grandes, corte primero en el zanco más
grande verticalmente (después
horizontalmente) y retire el trozo
cortado.
Mira
Cuando corte la entalla de tala, use la
mira en el protector y la envuelta para
verificar el sentido de caída deseado:
Coloque la sierra de modo que la mira
apunte exactamente en la dirección que
usted desea que caiga el árbol.
Corte convencional
Entalla de tala (C) – determina el
sentido de caída del árbol
Para un corte convencional:
NColoque debidamente la entalla de
tala perpendicular a la línea de
caída, cerca del suelo.
NCorte hacia abajo en un ángulo de
unos 45° hasta una profundidad de
aproximadamente 1/5 a 1/4 del
diámetro del tronco.
NHaga un segundo corte horizontal.
NQuite el pedazo de 45° resultante.
88
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
español / EE.UU
001BA150 KN
001BA144 KN
D
D
Técnica de cara libre
Entalla de tala (C) – determina el
sentido de caída del árbol
Para un corte de cara libre:
NColoque debidamente la entalla de
tala perpendicular a la línea de
caída, cerca del suelo.
NCorte hacia abajo en un ángulo de
unos 50° hasta una profundidad de
aproximadamente 1/5 a 1/4 del
diámetro del tronco.
NHaga un segundo corte desde
abajo en un ángulo de unos 40°.
NQuite el pedazo de 90° resultante.
Para hacer cortes de albura
NEn árboles de tamaño mediano o
más grandes, haga cortes a ambos
lados del tronco, a la misma altura
que el corte de tala subsiguiente.
NCorte no más del ancho de la
espada.
Esto es especialmente importante en los
casos de la madera blanda durante el
verano; ayuda a evitar que se astille la
albura al caer el árbol.
D =Corte de tala
Técnica convencional y de cara libre:
NComience de 2,5 a 5 cm (1 a 2 pulg)
más arriba que el centro de la
entalla de tala.
NCorte horizontalmente hacia la
entalla de tala.
NDeje aprox. 1/10 del diámetro sin
cortar. Este es el eje de inclinación.
NNo corte a través del eje – podría
perder el control del sentido de la
caída.
Inserte cuñas en el corte de tala donde
sea necesario para controlar la caída.
¡Advertencia!
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
Si la punta de la espada hace contacto
con una cuña, puede producirse un contragolpe. Las cuñas deben ser de
madera o de plástico, pero jamás de
acero porque se dañaría la cadena.
89
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001BA145 KN
E
E
001BA147 KN
001BA148 KN
1
E = Eje de inclinación
NAyuda a controlar la caída del árbol.
NNo corte a través del eje – podría
perder el control del sentido de la
caída.
Corte de tala para árboles de
diámetro pequeño: Corte en abanico
sencillo
Enganche las púas de tope de la
motosierra directamente detrás del eje
de inclinación del árbol previsto y haga
girar la sierra alrededor de ese punto
solamente hasta el eje. La púa de tope
rueda contra el tronco.
Corte de tala para árboles de
diámetro grande
¡Advertencia!
Para talar un árbol cuyo diámetro es
mayor que el largo de la espada es
necesario emplear el método de corte
de tala por secciones o de corte por
penetración. Estos métodos son extremadamente peligrosos porque implican
el uso de la punta de la espada y pueden causar contragolpe. Estas técnicas
deben ser empleadas únicamente por
profesionales competentes.
Método de corte por secciones
Para el método de corte por secciones
haga la primera parte del corte de tala
moviendo la espada en abanico hacia el
eje de inclinación. Después, usando la
púa de tope como pivote, cambie de
posición la sierra para el próximo corte.
90
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
Evite reposicionar la sierra más de lo
4
2
necesario. Cuando cambie de posición
para el próximo corte, mantenga la
espada totalmente dentro de la entalla
para mantener un corte de tala recto. Si
la sierra empieza a quedar aprisionada,
inserte una cuña para abrir el corte. En
el último corte, no corte el eje de
inclinación del árbol.
Método de corte por penetración
La madera cuyo diámetro es más del
doble del largo de la espada requiere el
uso del método de corte por penetración
antes de hacer el corte de tala.
Primero, corte una entalla de tala
grande y ancha. Haga un corte por
penetración en el centro de la entalla.
El corte por penetración se hace con la
punta de la espada. Comience el corte
aplicando la parte inferior de la punta de
la espada contra el árbol en un ángulo.
Corte hasta que la profundidad de la
entalla sea casi igual que el ancho de la
espada. En seguida, alinee la sierra en
el sentido en que se va a cortar el
rebajo.
Con la sierra acelerada a fondo, inserte
la espada en el tronco.
Agrande el corte por penetración como
se muestra en la ilustración.
¡Advertencia!
En este momento existe un gran peligro de que ocurra contragolpe.
Preocúpese de mantener el control
de la sierra. Para hacer el corte de
tala, emplee el método de corte por
secciones descrito anteriormente.
español / EE.UU
Si no tiene experiencia en el manejo de
una motosierra, no intente hacer el corte
por penetración. Pida la ayuda de un
profesional.
¡Advertencia!
Para reducir el riesgo de lastimarse, no
se sitúe nunca directamente detrás del
árbol cuando está listo para caer, ya
que parte del tronco puede rajarse y
caer en dirección del operador, o el
árbol puede saltar hacia atrás desprendiéndose del tocón. Siempre sitúese a
un lado del árbol que va a caer. Cuando
el árbol empiece a caer, retire la
espada, apague el motor y aléjese por
la ruta de escape prevista. Esté atento a
las ramas que caen.
¡Advertencia!
Tenga sumo cuidado con los árboles
parcialmente caídos que no tiene buenos puntos de apoyo. Cuando el árbol
por alguna razón no se cae completamente, deje a un lado la sierra y tire el
árbol abajo con un cabrestante de
cable, un polipasto y aparejo o un tractor. Si trata de cortarlo con la sierra,
podría lesionarse.
Desrame
El desrame consiste en cortar las ramas
de un árbol caído.
¡Advertencia!
Durante la operación de desrame existe
gran peligro de contragolpe. No corte
con la punta de la espada. Sea precavido y evite tocar el tronco o las ramas
con la punta de la espada.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
91
español / EE.UU
001BA033 KN
001BA051 LÄ
1
001BA151 KN
2
1
001BA152 KN
2
No se suba a un tronco mientras le está
cortando las ramas; puede resbalarse o
el tronco puede rodar.
Empiece a desramar dejando las ramas
inferiores para que sostengan el tronco
elevado del suelo. Cuando corte de
abajo hacia arriba las ramas que están
en el aire, la sierra puede quedar
aprisionada o la rama puede caerse,
causando la pérdida del control de la
máquina. Si la sierra queda aprisionada,
apague el motor y levante la rama para
poder retirar la sierra.
¡Advertencia!
Sea precavido cuando corte ramas o
troncos que están bajo tensión (como
pértigas de salto). Las ramas o troncos
podrían saltar hacia el operador y causar la pérdida de control de la sierra y
lesiones graves o mortales.
Tronzado
El tronzado consiste en cortar un tronco
en secciones.
¡Advertencia!
Durante el tronzado, no se suba al
tronco. Asegúrese que el tronco no
vaya a rodar cerro abajo. Si se encuentra en una ladera, sitúese cerro arriba
del tronco. Esté atento a los troncos que
pueden rodar.
Corte solamente un tronco a la vez.
La madera astillada deberá cortarse con
mucho cuidado. Las astillas afiladas
pueden atraparse y salir lanzadas hacia
el operador.
Cuando corte troncos pequeños,
colóquelos en soportes en forma de "V"
encima de un caballete. No permita que
otra persona sujete el tronco. No sujete
nunca el tronco con las piernas o pies.
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Troncos bajo tensión:
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¡Riesgo de aprisionamiento! Siempre
comience con un corte de distensión (1)
en el lado de compresión. Después
haga un corte de tronzado (2) en el lado
de tensión. Si la sierra queda
aprisionada, apague el motor y retírela
del tronco.
Únicamente los profesionales
capacitados deben trabajar en una zona
en que los troncos, ramas y raíces se
encuentran enredados. El trabajo en
zonas en las cuales se encuentran
árboles caídos por el viento es muy
arriesgado. Arrastre los troncos hasta
una zona despejada antes de comenzar
a cortar. Retire de la zona primero los
troncos aislados y despejados.
MANTENIMIENTO, REPARACIÓN Y
ALMACENAMIENTO
Los trabajos de mantenimiento,
reemplazo o reparación de los
dispositivos y sistemas de control de
emisiones de escape pueden ser
realizados por cualquier taller o
técnico de motores no diseñados
para vehículos. Sin embargo, si usted
está reclamando cobertura de
garantía para algún componente que
no ha sido reparado o mantenido
debidamente, o cuando se utilizan
repuestos no autorizados, STIHL
puede denegar la garantía.
¡Advertencia!
Utilice solamente piezas de repuesto de
STIHL para el mantenimiento y reparación. El uso de piezas no fabricadas por
STIHL puede causar lesiones graves o
mortales.
Siga precisamente las instrucciones de
mantenimiento y reparación dadas en la
sección correspondiente del manual de
instrucciones. Consulte la tabla de
mantenimiento en este manual.
¡Advertencia!
Siempre apague el motor y asegúrese
que la herramienta de corte está detenida antes de hacer cualquier trabajo de
mantenimiento, reparación o limpieza
de la herramienta motorizada.
¡Advertencia!
No intente hacer ningún trabajo de mantenimiento o reparación que no esté
descrito en su manual de instrucciones.
Este tipo de trabajo debe ser realizado
únicamente por el concesionario de servicio de STIHL. Por ejemplo, si se
utilizan herramientas inadecuadas para
retirar el volante del motor o para sujetar el volante para retirar el embrague,
se puede causar daños estructurales en
el volante y, como consecuencia, el
mismo puede romperse durante el uso.
Use guantes para manipular o mantener
las cadenas de aserrado.
¡Advertencia!
Use la bujía especificada y asegúrese
de que ella y el cable de encendido
están limpios y en buen estado. Siempre inserte el casquillo de la bujía bien
apretado en el borne de la bujía del
tamaño adecuado. (Nota: Si el borne
tiene una tuerca adaptadora SAE desmontable, tiene que ser firmemente
instalada.) Una conexión suelta entre el
borne de la bujía y el conector del cable
de encendido en el casquillo puede
crear un arco voltaico y encender los
vapores del combustible, provocando
un incendio.
¡Advertencia!
No pruebe nunca el sistema de encendido con el casquillo desconectado de
la bujía, o sin tener instalada la bujía, ya
que las chispas al descubierto pueden
causar un incendio.
¡Advertencia!
No maneje nunca su motosierra si el
silenciador está dañado, se ha perdido
o si fue modificado. Un silenciador mal
cuidado aumenta el riesgo de incendio y
puede causar pérdida del oído.
Si el silenciador está equipado con un
chispero para reducir el riesgo de
incendio, no maneje nunca su
motosierra si le falta el chispero o está
dañado. Recuerde que el riesgo de
incendios forestales es mayor durante
las estaciones calurosas y secas.
Mantenga limpios la cadena, la espada
y el piñón; sustituya las ruedas o
cadenas desgastadas. Mantenga
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
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español / EE.UU
001BA191 KN
1
2
3
a
t = a : 2
afilada la cadena. Podrá notar que la
cadena está desafilada cuando la
madera fácil de cortar exige gran
esfuerzo y cuando aparecen marcas de
quemaduras en la madera. Mantenga la
cadena correctamente tensada.
Apriete todas las tuercas, pernos y
tornillos, excepto los tornillos de ajuste
del carburador, después de cada uso.
¡Advertencia!
Para que el freno de la cadena de su
motosierra STIHL ejecute correctamente su función de reducir el riesgo de
contragolpe y otras lesiones, tiene que
estar bien cuidado. Igual que el freno de
un automóvil, el freno de la cadena de
una motosierra se desgasta cada vez
que se accione.
La cantidad de desgaste variará
dependiendo del uso, las condiciones
en que se utiliza la sierra y otros
factores. El desgaste excesivo reducirá
la eficacia del freno de la cadena y lo
puede dejar inoperante.
Para el funcionamiento correcto y eficaz
del freno de la cadena, tanto la banda de
freno como el tambor del embrague
deben mantenerse limpios, sin tierra,
grasa u otra materia extraña que pueda
reducir la fricción de la banda sobre el
tambor.
Por estas razones, toda motosierra de
STIHL deberá ser entregada a personal
experto, tal como el personal del
concesionario de servicio STIHL, para la
inspección y servicio periódicos del
sistema de freno de acuerdo a los
intervalos indicados a continuación:
Uso intenso – cada tres meses, uso
moderado – dos veces al año, uso
ocasional – anualmente.
La motosierra deberá también llevarse
inmediatamente al taller cada vez que el
sistema de freno no pueda ser limpiado
a fondo o se produzca un cambio en sus
características de funcionamiento.
Para el mantenimiento del sistema de
control de emisiones, consulte la tabla
de mantenimiento y la declaración de garantía limitada que se encuentran
cerca del final de este manual.
No limpie la máquina con una lavadora
a presión. El chorro fuerte de agua
puede dañar las piezas de la máquina.
Guarde la motosierra en un lugar seco y
lejos del alcance de los niños. Antes de
guardar la máquina por más de unos
pocos días, siempre vacíe el tanque de
combustible (vea el capítulo
"Almacenamiento de la máquina" en el
manual de instrucciones).
Accesorio de corte
STIHL es el único fabricante en la
industria que produce sus propios
motosierras, espadas, cadenas de
aserrado y piñones.
Un accesorio de corte consta de la
cadena de aserrado, la espada y el
piñón.
El accesorio de corte estándar ha sido
diseñado para usar específicamente
con esta motosierra.
–El paso (t) de la cadena de
aserrado (1), el piñón impulsor y el
piñón de la espada Rollomatic
deben corresponderse.
–El grueso del eslabón impulsor (2)
de la cadena de aserrado (1) debe
corresponder con el ancho de la
ranura de la espada (3).
El uso de componentes no apareados
puede resultar en daños permanentes
del accesorio de corte dentro de poco
tiempo de uso.
94
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español / EE.UU
143BA034 KN
1
2
001BA185 KN
001BA186 KN
143BA003 KN
3
1
1
2
4
001BA187 KN
Montaje de la espada y
cadena (tensor lateral de la
cadena)
Retiro de la cubierta del piñón de la
cadena
NDestornille las tuercas y retire la
cubierta del piñón de la cadena.
NGire el tornillo (1) en sentido
contrahorario, hasta que el tensor
deslizante (2) tope contra el
extremo izquierdo de la ranura de la
caja.
Cómo soltar el freno de la cadena.
NTire del protector de la mano hacia
el mango delantero hasta que se
escuche el "clic" – el freno de la
cadena ahora está suelto.
Instalación de la cadena
Use guantes para proteger las
manos de los cortadores afilados.
NColoque la cadena – empiece por la
punta de la espada.
NColoque la espada sobre los
espárragos (1) – los bordes de
corte en la parte superior de la
espada deben quedar apuntando
hacia la derecha.
NEnganche la espiga del tensor
deslizante en el agujero
localizador (2) -- coloque la cadena
sobre el piñón (3) al mismo tiempo.
NGire el tornillo tensor (4) en sentido
horario hasta que la cadena tenga
muy poco huelgo por el lado inferior
de la espada – y las pestañas de los
eslabones impulsores se
enganchen en la ranura de la
espada.
NVuelva a colocar la tapa del piñón y
apriete las tuercas con los dedos.
NPase al capítulo "Tensado de la
cadena de aserrado"
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
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1
2
207BA009 KN
001BA186 KN
143BA003 KN
4
1
1
2
3
207BA010 KN
Montaje de la espada y
cadena (tensor frontal de la
cadena)
Retiro de la cubierta del piñón de la
cadena
NDestornille la tuerca y quite la
cubierta del piñón de la cadena.
NGire el tornillo (1) en sentido
contrahorario, hasta que la tuerca
tensora (2) tope contra el extremo
izquierdo de la ranura de la caja.
Suelte el freno de la cadena.
NTire del protector de la mano hacia
el mango delantero hasta que se
escuche el "clic" – el freno de la
cadena ahora está suelto.
Instalación de la cadena
Use guantes para proteger las
manos de los cortadores afilados.
NColoque la cadena – empiece por la
punta de la espada.
NColoque la espada sobre los
espárragos (1) – los bordes de
corte en la parte superior de la
espada deben quedar apuntando
hacia la derecha.
NEnganche la espiga del tensor
deslizante en el agujero
localizador (2) – coloque la cadena
sobre el piñón (3) al mismo tiempo.
NGire el tornillo tensor (4) en sentido
horario hasta que la cadena tenga
muy poca holgura por el lado
inferior de la espada – y las
pestañas de los eslabones
impulsores se enganchen en la
ranura de la espada.
NVuelva a colocar la tapa del piñón y
apriete su tuerca con los dedos.
NPase al capítulo "Tensado de la
cadena de aserrado"
96
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
español / EE.UU
1
2
3
2310BA013 KN
1
2310BA014 KN
2310BA015 KN
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1
3
2310BA016 KN
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2310BA017 KN
001BA186 KN
1
181BA012 KN
Montaje de la espada y
cadena (tensor rápido de la
cadena)
Retiro de la cubierta del piñón de la
cadena
NGire el mango (1) a su posición
(hasta que se engrane)
NGire la tuerca mariposa (2) hacia la
izquierda hasta que cuelgue suelta
en la cubierta del piñón de la
cadena (3).
NRetire la cubierta del piñón (3) de la
cadena
Soltado del freno de la cadena
NQuite el tornillo (2)
NTire del protector de la mano hacia
el mango delantero hasta que se
escuche que se engancha - el freno
de la cadena está suelto
Instalación de la cadena de aserrado
NColoque el engranaje tensor (1) y la
espada (3) en sus posiciones
relativas respectivas
Montaje del engranaje tensor
NInserte y apriete el tornillo (2)
NRetire e invierta el engranaje tensor
(1).
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
Póngase guantes protectores –
¡riesgo de lesiones causadas por
las cortadoras afiladas!
97
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2
3
181BA013 KN
135BA011 KN
4
5
2310BA018 KN
NColoque la cadena de aserrado
comenzando en la punta de la
espada – preste atención a la
posición del engranaje tensor y los
bordes cortantes.
NGire el engranaje tensor (1) hacia la
derecha hasta su tope
NGire la espada para que el
engranaje tensor quede frente al
usuario.
NColoque la cadena de aserrado en
el piñón de la cadena (2)
NDeslice la espada sobre el tornillo
de collar (3); la cabeza del tornillo
de collar debe sobresalir por el
agujero alargado
Ngire un poco la rueda de ajuste (4)
hasta que la cubierta del piñón de la
cadena pueda deslizarse
completamente contra la caja del
motor
NGire el mango (5) a su posición
(hasta que se engrane)
NColoque la tuerca mariposa y
apriétela ligeramente.
NPaso siguiente: vea "Tensado de la
cadena de aserrado".
NGuíe el eslabón impulsor hacia la
ranura de la espada (vea la flecha)
y gire el engranaje tensor hacia la
izquierda hasta su tope.
NColoque la cubierta del piñón,
deslizando las orejetas guía en las
aberturas correspondientes de la
caja del motor
Al colocar la cubierta del piñón de la
cadena, los dientes de la rueda de
ajuste y el engranaje tensor deben
engranar; de ser necesario,
98
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
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