STIHL HT Attachment Owner's Manual
STIHL HT
Warning!
Read and follow all safety
precautions in Instruction Manual –
improper use can cause serious or
fatal injury.
Advertencia!
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
Manual de instrucciones
Instruction Manual
1 - 30
Manual de
instrucciones
31 - 62
Contents
English
Interchangeable Attachments 2
Guide to Using this Manual 2
Safety Precautions and Working
Techniques 3
Using the Unit 11
Approved Basic Power Tools 13
Mounting the Attachment 13
Mounting the Bar and Chain 15
Original Instruction ManualPrinted on chlorine-free paper
Tensioning the Chain 16
Checking Chain Tension 16
Chain Lubricant 16
Filling Chain Oil Tank 17
Checking Chain Lubrication 18
Fitting the Harness 18
Starting / Stopping the Engine 19
Operating Instructions 20
Storing the Machine 20
Taking Care of the Guide Bar 21
Checking and Replacing the Chain
Sprocket 21
Maintaining and Sharpening the
Saw Chain 22
Printing inks contain vegetable oils, paper can be recycled.
Maintenance and Care 26
Main Parts 27
Specifications 28
Special Accessories 29
Maintenance and Repairs 29
Trademarks 29
Allow only persons who fully understand
the manuals of the basic power tool and
your pole pruner attachment to operate
this power tool combination.
To receive maximum performance and
satisfaction from your STIHL pole pruner
attachment, 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 pole
pruner attachment. 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 the
two manuals.
Warning!
Because a power tool power head and
shaft equipped with a pole pruner
attachment is a power tool, some special safety precautions must be
observed to reduce the risk of personal
injury. Careless or improper use may
cause serious or even fatal injury.
{
© ANDREAS STIHL AG & Co. KG, 2011
0458-402-8621-A. M2-4.F11.PM.
0000000244_001_GB
HT
1
English
002BA322 KN
+
+
.
.
.
.
Interchangeable
Attachments
The STIHL attachment may be mounted
to different STIHL power tools.
The approved power tool models are
listed in the chapter on "Approved Basic
Power Tools".
In this instruction manual the functional
unit formed by the basic power tool
power head and shaft and attachment is
referred to as the power tool.
Therefore, the separate instruction
manuals for the basic power tool and
attachment should be used together for
the power tool.
Always read and and make sure you
understand both instruction manuals
before using your power tool for the first
time and keep them in a safe place for
future reference.
Guide to Using this Manual
Pictograms
All the pictograms attached to or
embossed on the machine are shown
and explained in this manual.
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:
N A 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:
N Loosen the screw (1).
N Lever (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 differ from those
described in this manual, please contact
your STIHL dealer for assistance.
2
HT
English
Safety Precautions and
Working Techniques
Because a power tool
power head and shaft
equipped with a pole
pruner attachment is a
high-speed, fast-cutting
power tool with a very
long reach, 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 manuals and
the safety precautions for
your basic power tool and
pole your pruner attachment periodically.
Careless or improper use
may cause serious or
fatal injury.
Have your STIHL dealer show you how
to operate your power tool. Observe all
applicable local safety regulations,
standards and ordinances.
Warning!
Do not lend or rent your power tool without the instruction manuals for your
basic power tool and your pole pruner
attachment. Be sure that anyone using it
understands the information contained
in these manuals.
Warning!
The use of this machine may be hazardous. The pole pruner chain has many
sharp cutters. If the cutters contact your
flesh, they will cut you, even if the chain
is not moving.
Do not cut any material other than wood
or wooden objects. Use your power tool
power head and shaft equipped with a
pole pruner attachment for limbing only.
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
pole pruners. Different models may have
different parts and controls. See the
appropriate section of your basic power
tool and your pole pruner attachment
instruction manuals for a description of
the controls and the function of the parts
of your model.
Safe use of a power tool involves
1. the operator
2. the power tool
3. the 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.
Proper Clothing
Warning!
To reduce the risk of injury, the operator
should wear proper protective apparel.
HT
3
English
002BA254 KN
Warning!
To reduce the risk of
injury to your eyes never
operate your power tool
unless wearing goggles
or properly fitted protec-
tive 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.
Wear an approved safety hard hat to
reduce the risk of injury to your head.
Power tool noise may damage your
hearing. Wear sound barriers (ear plugs
or ear mufflers) to protect your hearing.
Continual and regular users should
have their hearing checked regularly.
Be particularly alert and cautious when
wearing hearing protection because
your ability to hear warnings (shouts,
alarms, etc.) is restricted.
Always wear gloves
when handling the
machine and the cutting
tool. Heavy-duty, nonslip
gloves improve your grip
and help to protect your
hands.
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. Do not wear
shorts, sandals or go
barefoot.
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.
For further instructions on proper
clothing see the safety precautions in
the instruction manual of the basic
power tool.
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 basic power tool
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!
Always switch off the engine and fit the
scabbard over the cutting attachment
before transporting the power tool over
long distances.
It may be carried only in a horizontal
position. Grip the shaft in a manner that
the machine is balanced horizontally.
Keep the hot muffler away from your
body and the cutting attachment behind
you. Accidental acceleration of the
engine can cause the chain to rotate and
cause serious injuries.
4
HT
English
275BA006 KN
Warning!
When transporting it in a vehicle, properly secure it to prevent turnover, fuel
spillage and damage to the unit.
Before Starting
Take off the chain guard (scabbard) and
inspect the pole pruner for proper
condition and operation. (See the
maintenance chart near the end of the
instruction manuals.)
Warning!
Always check your power tool for proper
condition and operation before starting.
Never attempt to modify the controls or
safety devices.
Warning!
Never operate your power tool if it is
damaged, improperly adjusted or maintained, or not completely or securely
assembled.
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.
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.
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 pole pruner with the sprocket
cover loose. Check chain tension once
more after having tightened the nut(s)
and thereafter at regular intervals
(whenever the pole pruner 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!
Adjust harness and hand grip to suit
your size before starting work. To be
better prepared in case of an
emergency, practice releasing the unit
from the harness as quickly as possible.
Starting
Start the engine at least 10 feet (3 m)
from the fueling spot, outdoors only.
For specific starting instructions, see the
appropriate section of your basic power
tool and your pole pruner attachment
manuals.
Place the pole pruner on firm ground or
other solid surface in an open area or, in
the alternative, as shown in the above
picture. Maintain good balance and
secure footing.
Warning!
To reduce the risk of injury from loss of
control, do not attempt to "drop start"
your power tool.
Warning!
To reduce the risk of injury from loss of
control be absolutely sure that the guide
bar and chain are clear of you and all
other obstructions and objects, including the ground, because when the
engine starts at starting-throttle, engine
speed will be fast enough for the clutch
to engage the sprocket and move the
chain.
Once the engine has started,
immediately blip the throttle trigger,
which should release the starting throttle
and allow the engine to slow down to
idle.
With the engine running only at idle,
attach the power tool to the spring hook
of your harness (see appropriate
chapter of this manual).
HT
5
English
402BA030 KN
Warning!
Your power tool is a one-person
machine. Do not allow other persons in
the general work area, even when
starting.
See also the Safety Precautions on
Starting in the instruction manual for
your basic power tool.
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.
handers. Keep your hands in this
position to have your pole pruner under
control at all times.
Warning!
Never attempt to operate your power
tool with one hand. Loss of control of the
power tool resulting in serious or fatal
injury may result.
Warning!
Do not overreach. 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
and ditches to avoid stumbling. For better footing, clear away fallen branches,
scrub and cuttings. Be extremely cautious when working on slopes or uneven
ground.
Warning!
To reduce the risk of injury from loss of
control, never work on a ladder, in a tree
or any other insecure support. Never
hold the machine above shoulder
height. When working at a height above
15 feet (4.5 m) use a lift bucket.
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!
If the vegetation being cut or the surrounding ground is coated with a
chemical substance (such as an active
pesticide or herbicide), read and follow
the instructions and warnings that
accompanied the substance at issue.
Place your left hand on the front handle
and your right hand on the rear grip and
throttle trigger. This also applies to left-
6
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.
HT
English
15m (50ft)
15m (50ft)
Warning!
Inhalation of certain
dusts, especially organic
dusts such as mold or
pollen, can cause sus-
ceptible 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.
Warning!
Breathing asbestos dust is dangerous
and can cause severe or fatal illness,
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.
Warning!
This power tool has a large range. In
order to reduce the risk of personal or
even fatal injury to bystanders from falling objects or inadvertent contact with
the moving chain of your power tool
always keep bystanders at least 50 feet
(15 m) away when the power tool is
running.
Danger!
Your power tool is not
insulated against electric shock. To reduce
the risk of electrocution, never operate this
power tool in the vicinity of any wires or cables (power,
etc.) which may be carrying electric
current.
Electricity can jump from one point to
another by means of arcing. Higher
voltage increases the distance electricity
can arc. Electricity can also move
through branches, especially if they are
wet. Maintain a clearance of at least
50 feet (15 m) between the pole pruner
(including any branches it is contacting)
and any electrical line carrying live
current. Before working with less
clearance, contact your electric utility
and make sure the current is turned off.
Stop the engine immediately if you are
approached.
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 and injure the
operator or bystanders, or damage the
saw chain.
Warning!
Even though bystanders should be kept
away from the running power tool, never
work alone. Keep within calling distance
of others in case help is needed.
HT
7
English
275BA005 KN
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 / momentary stop
switch to 0 or STOP.
See section of your basic power tool
instruction manual on the proper use of
the slide control / stop switch /
momentary stop switch.
Warning!
To reduce the risk of cut injuries, keep
hands and feet away from the saw
chain. Never touch a moving chain with
your hand or any other part of your
body. The saw chain continues to move
for a short period after the throttle trigger
is released (inertia effect).
Accelerating the engine while the chain
is blocked increases the load and will
cause the clutch to slip continuously.
This may result in overheating and
damage to important components (e.g.
clutch, polymer housing components) –
which can then increase the risk of injury
from the chain moving while the engine
is idling.
Warning!
Prior to limbing, clear the working area
from interfering limbs and brush. Then,
establish an escape area away from
where the cut limbs can fall, and remove
all obstacles.
Keep work area clear – move away
fallen limbs. Place all tools and
equipment at a safe distance from the
branches being limbed, but not in the
escape area.
Warning!
Always observe the general condition of
the tree. Look for decay and rot in the
trunk and branches. If it is rotted inside,
it could snap and fall toward the operator while being cut. Also look for broken
or dead branches which could vibrate
loose and fall on the operator. If the
branch is thick or heavy, make a shallow
relief cut on the bottom of the branch
before cutting down from the top to help
prevent splitting of the branch.
Warning!
To reduce the risk of severe or even
fatal injury from falling objects do not cut
vertically above your body. Hold the
pole pruner at an angle of not more than
60° from the horizontal level (see picture). Objects may fall in unexpected
directions. Do not stand directly underneath the limb being cut!
Watch for falling wood! As soon as the
limbed branch starts to fall, step aside
and keep a sufficient distance away from
the falling wood.
Warning!
If the chain becomes clogged, always
shut off the engine and make sure the
chain has stopped before cleaning.
8
HT
English
002BA230 KN
001BA037 KN
A
Warning!
Always pull the unit out of the cut with
the chain running to reduce the possibility of pinching the cutting attachment.
Don't put pressure on the pole pruner
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 some other
object.
If the bar becomes pinched and caught
in the branch so that the chain can no
longer move, shut off the pole pruner
and carefully move the branch to open
the pinch and release the bar.
Warning!
The gearbox becomes hot during operation. To reduce the risk of burn injury,
do not touch the gear housing when it is
hot.
Reactive Forces
Warning!
Reactive forces may occur any time the
chain is rotating.The 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 branch or is pinched,
the reactive forces may occur instantly.
These reactive forces may result in loss
of control, which, in turn, may cause
personal injury. An understanding of the
causes of these reactive forces may
help you avoid the element of surprise
and loss of control.
Because of the design of the pole
pruner, the reactive forces experienced
when working with it are generally not as
severe as those encountered with a
chain saw. Nevertheless, you should
always maintain a proper grip and good
footing to control the power tool when
you experience such forces.
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.
The reaction of the cutting force of the
chain causes a rotational force on the
pole pruner in the direction opposite to
the chain movement. This may cause
the bar to move upward.
To Avoid Kickback
The best protection from kickback is to
avoid kickback situations:
1. Be aware of the location of the guide
bar nose at all times
2. 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, which may easily catch the
chain.
3. Cut only one limb at a time.
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.
Pull-in frequently occurs when the chain
is not rotating at full speed before it
contacts the wood.
To Avoid Pull-in
1. Be alert to forces or situations that
may cause material to pinch the
chain at the bottom of the bar.
2. Always start a cut with the chain
rotating at full speed.
HT
9
English
001BA038 KN
B
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.
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
chain at the top of the bar.
2. Do not cut more than one limb at a
time.
3. Do not twist the bar when
withdrawing it from an underbuck
cut because the chain can pinch.
MAINTENANCE, REPAIR AND
STORING
Warning!
Always stop the engine and make sure
that the chain is stopped before doing
any maintenance or repair work or
cleaning the power tool. Do not attempt
any maintenance or repair work not
described in the instruction manuals for
your basic power tool and your pole
pruner attachment. Have such work performed at your STIHL servicing dealer
only.
Warning!
Use only identical STIHL replacement
parts for maintenance and repair. Use of
non-STIHL parts may cause serious or
fatal injury.
Wear gloves when handling or
performing maintenance on the cutting
attachment.
Warning!
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 or burn marks appear on the
wood.
Tighten all nuts, bolts and screws except
the carburetor adjustment screws after
each use.
Do not clean your machine with a
pressure washer. The solid jet of water
may damage parts of the machine.
Store the power tool in a dry and high or
locked location out of reach of children.
Store chain oil in approved and properly
labeled safety-type canisters only. Avoid
direct contact with the skin!
10
HT
English
402BA012 KN
390BA052 KN
2
1
390BA041 KN
Using the Unit
Preparations
N Wear suitable protective clothing,
observe safety precautions.
N Starting the engine
N Put on the shoulder strap.
Cutting sequence
To allow branches a free fall, always cut
the lower branches first. Prune heavy
branches (large diameter) in several
controllable pieces.
Never stand directly underneath
the branch you are cutting – be
wary of falling branches. Note that
a branch may spring back at you
after it hits the ground – risk of
injury.
Disposal
Do not throw cuttings into the garbage
can – they can be composted.
Working Technique
The shaft should always be held at an
angle of 60° or less.
The least tiring working position is a tool
angle of 60°.
Any lesser angle may be used to suit the
situation concerned.
Cross-cut
Relieving cut
To avoid tearing the bark on thick
branches, always start by performing a
relieving cut (1) on the underside of the
branch.
N To do this, apply the cutting
attachment and pull it across the
bottom of the branch in an arc as far
as the bar nose.
N Then position the bar with the hook
against the branch and perform the
cross-cut (2).
Hold the control handle with your right
hand, and the loop handle with your left
hand. Your left arm should be extended
to the most comfortable position.
HT
To avoid pinching the bar in the cut,
position the cutting attachment with the
hook against the branch and then
perform the cross-cut from the top
downwards.
11
English
3
4
A
390BA024 KN
402BA013 KN
402BA032 KN
1
2
390BA053 KN
Flush-cutting thick branches
If branch diameter is more than
4in(10cm), first
N perform an initial cut (3), with
relieving cut and cross-cut at
distance (A) of about 8 in (20 cm)
from the final cut, then carry out the
flush-cut (4), starting with a relieving
cut and finishing with a cross-cut.
Cutting above obstacles
The unit's long reach makes it possible
to prune branches that are overhanging
obstacles, such as rivers or lakes. The
tool angle in this case depends on the
position of the branch.
Cutting from a lift bucket
30° angle drive (special accessory)
The angle drive keeps the cutting
attachment at an angle of 30° to the
drive tube.
The angle drive may be adjusted on the
drive tube to the following positions only:
1 For cross-cutting vertical branches
and bushes.
2 For a better view of the cutting
attachment.
12
The unit's long reach enables cutting to
be performed next to the trunk without
the risk of the lift bucket damaging other
branches. The tool angle in this case
depends on the position of the branch.
HT
English
228BA048 KN
FCS
HL/FH
BF
HT
KB/KW
FS
Approved Basic Power
Tools
Operation of this interchangeable
attachment is permitted only with the
following basic power tools:
STIHLFS83R, FS85R
FS 110 R2), FS 130 R
STIHL FH 75
STIHL FC 83, FC 85, FC 95, FC 110
STIHLHL73
2)
, HL 752), HL 100
STIHL HT 56, HT 70, HT 73, HT 75,
HT 100, HT 101, HT 130, HT 131,
HT 250
STIHL KW 85
The HT attachment is not approved for
use on bike-handled machines.
The optional 30° angle drive must not be
mounted to the following models:
STIHL HT 73, HT 75, HT 101, models
with short drive tube (K versions).
Other combinations of the
attachment and non-approved
basic power tools are not
permitted since they may result
in accidents or serious
personal injury.
1) 2)
, FS 90 R,
Mounting the Attachment
Preparations
To reduce the risk of injury,
always shut off the engine before
converting the basic power tool.
Make sure the work area is clean
2)
before mounting or removing the
attachment.
Remove any existing gearhead or
interchangeable attachment from the
basic power tool.
1)
Not approved for FS 85 R with serial
numbers from 2 49 848 196 up to
253552820
2)
Not approved for models FS 85 RX,
FS 110 RX, HL 73 K, HL 75 K and
HL 100 K
HT
N To do this, loosen the clamp screws
on the gearhead (arrows) and pull
the gearhead off the drive tube.
13
English
381BA015 KN
L
A
402BA002 KN
2
402BA023 KN
1
402BA024 KN
3
3
1
A
1
3
1
413BA012 KN
2
2
The drive shaft may slip out of the tube
in this process. If this happens, push the
drive shaft back into the tube.
The drive shaft must not project from the
tube more than L = 7/8 in (22 mm ). If
this dimension is not correct, apply slight
pressure to the drive shaft and rotate it
slowly at the same time until it can be
pushed in to the required length.
Mounting the Cutting Attachment
N Apply a mark (with pencil or felt-tip
pen) at distance A (2 in/50 mm)
from the end of the drive tube.
– Loosen the clamp screws on the
gearhead – do not remove them.
14
N Push the gearbox (1) onto the drive
tube (2) – turn the gearbox back and
forth until the square end of the
shaft engages.
N Insert the clamp screws (3) as far as
stop.
N Line up the gearbox (1) on the drive
tube so that the machine support on
the engine and the clamp screws
face up and the chain sprocket
cover is exactly vertical.
N Tighten down the clamp screws (3)
in the following sequence:
– tighten the left screw moderately
– tighten the right screw moderately
– tighten down the left screw firmly
– tighten down the right screw firmly
It must not be possible to rotate
the gearbox on the drive tube.
Fitting the Carrying Ring
A carrying ring is necessary if the power
tool is to be used with a shoulder
strap/harness. Not all versions of basic
power tools are equipped with a carrying
ring.
A carrying ring is available as a special
accessory and is mounted as described
below.
N Mount the carrying ring (1) at
distance A = about 2 in (5 cm) in
front of the control handle (2).
N Place the open carrying ring (1)
against the drive tube with the
tapped hole on the left (viewed
from engine).
N Squeeze the ends of the carrying
ring together and insert the M6x14
screw (3).
N Line up the carrying ring and tighten
down the screw firmly.
HT
English
390BA042 KN
1
2
390BA043 KN
390BA003 KN
1
5
390BA044 KN
4
3
Mounting the Bar and
Chain
Removing the chain sprocket cover
N Unscrew the nut and remove the
cover.
Fitting the chain
Wear work gloves to protect your
hands from the sharp cutters.
N Fit the chain – start at the bar nose.
N Fit the guide bar over the screw (3)
and engage peg of tensioner slide in
the hole (4) – place the chain over
the sprocket (5) at the same time.
N Turn the tensioning screw (1)
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.
N Refit the cover and screw on the nut
fingertight.
N Go to chapter on "Tensioning the
Saw Chain"
N Turn the screw (1)
counterclockwise until the tensioner
slide (2) butts against the left end of
the housing slot, then back it off 5
full turns.
HT
15
English
1
390BA045 KN
390BA046 KN
Tensioning the Chain
Retensioning during cutting work:
N Stopping the engine
N Loosen the nut.
N Hold the bar nose up.
N Use a screwdriver to turn the
tensioning screw (1) clockwise until
the chain fits snugly against the
underside of the bar.
N While still holding the bar nose up,
tighten down the nut firmly.
N Go to "Checking Chain Tension".
A new chain has to be retensioned more
often than one that has been in use for
some time.
N Check chain tension frequently –
see chapter on "Operating
Instructions".
Checking Chain Tension
N Shut off the engine
N Wear work gloves to protect your
hands.
N The 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.
N If necessary, retension the chain.
A new chain has to be retensioned more
often than one that has been in use for
some time.
N Check chain tension frequently –
see chapter on "Operating
Instructions".
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 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.
16
HT
English
390BA047 KN
402BA036 KN
402BA037 KN
Filling Chain Oil Tank
A full chain oil tank is sufficient for
only half a tankful of fuel. Check
the oil level regularly during
cutting work. Never allow the oil
tank to run dry.
Preparations
N Thoroughly clean the oil filler cap
and the area around it to ensure that
no dirt falls into the tank.
N Position the machine so that the
filler cap is facing up.
Opening the filler cap
The bayonet-type oil tank filler cap with
hinged grip can be opened and closed
without tools.
N To open the tank, swing the grip to
the vertical position.
N Turn the filler cap counterclockwise
as far as stop and remove.
Filling up with chain oil
N Filling up with chain oil
Take care not to spill chain oil while
refilling and do not overfill the tank.
Closing the filler cap
N To close the oil tank, place the filler
cap in position with the grip upright,
making sure the recesses are in
alignment.
N Turn the filler cap clockwise as far
as stop.
N Fold the grip down so that it is flush
with the top of the cap.
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
for assistance if necessary STIHL
recommends that you have servicing
and repair work carried out exclusively
by an authorized STIHL servicing
dealer.
HT
17
English
390BA048 KN
1
002BA441 KN
2
1
2
1
2
002BA311 KN
1
2
1
2
002BA312 KN
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".
Fitting the Harness
Not all basic power tools are equipped
with a harness and carrying ring.
N Fit the carrying ring – see "Mounting
the Attachment".
The harness is available as a special
accessory.
The type of carrying ring, harness and
carabiner depends on the market and
the basic power tool.
Shoulder strap
Attach the unit to the shoulder strap.
N Attach the carabiner (1) to the
carrying ring (2) on the drive tube.
Detaching the machine from the
harness
N Press down the bar on the
carabiner (1) and pull the carrying
ring (2) out of the carabiner.
N Put on the shoulder strap (1).
N Adjust the length of the strap – with
the machine attached, the
carabiner (3) must be about a
hand's width below your right hip.
18
HT
English
402BA028 KN
402BA029 KN
Throwing Off Backpack
The machine must be quickly
thrown off in the event of imminent
danger. To throw off the machine,
use the procedure described
under "Detaching the machine
from the harness". Practice
removing and putting down the
machine as you would in an
emergency. To avoid damage, do
not throw the machine to the
ground when practicing.
Starting / Stopping the
Engine
Starting the Engine
Always follow the starting procedure
described in the basic power tool
instruction manual.
N Remove the blade scabbard. Check
that the chain is not touching the
ground or any other obstacles.
N Position the unit securely for
starting: Put the powerhead on the
ground so that it rests on the engine
support. Rest the hook on the
cutting attachment on a raised
support, e.g. a mound or branch.
N Make sure you have a safe and
secure footing.
N Hold the unit with your left hand on
the fan housing and press it down
firmly – your thumb should be under
the fan housing.
Do not stand or kneel on the drive
tube.
Alternative method of starting
N Hang the cutting attachment on the
branch so that it is held by the hook.
N Make sure you have a safe and
secure footing.
N Hold the unit firmly with your left
hand on the fan housing – your
thumb should be under the fan
housing.
The saw chain may begin run as
soon as the engine starts. For this
reason, blip the throttle after
starting – the engine returns to
idling speed.
Now follow the starting procedure
described in the basic power tool
instruction manual.
Shut off the engine.
N See basic power tool instruction
manual.
HT
19
Loading...