STIHL FH Attachment Owner's Manual
STIHL FH
STIH)
Instruction Manual
Manual de instrucciones
Warning!
For safe operation follow all safety
precautions in Instruction Manual - improper
use can cause serious injury.
Advertencia!
Para su seguridad durante el manejo de este
producto, siga siempre las precauciones de
seguridad dadas en el manual de
instrucciones - el uso indebido puede causar
lesiones graves.
Contents
English / USA
Power Tool Attachments ................... 2
Guide to Using this Manual .............. 2
Safety Precautions and
Working Techniques ......................... 3
Using the Machine .......................... 10
Approved Basic Power Tools .......... 11
Mounting the Attachment ................ 11
BA_SE_070_004_01_04.fmPrinted on chlorine-free paper.
Fitting the Harness ......................... 12
Adjusting Cutter Bar Angle ............. 13
Starting / Stopping
the Engine ...................................... 13
Lubricating the Gearbox ................. 14
Storing the Machine ........................ 15
Sharpening the Cutting Blades ....... 15
Main Parts ...................................... 16
Specifications ................................. 17
Special Accessories ....................... 17
Maintenance and Repairs ............... 17
Printing inks contain vegetable oils; paper can be recycled.
Allow only persons who understand this
manual to operate your power scythe
attachment.
To receive maximum performance and
satisfaction from your STIHL power
scythe attachment, it is important that
you read and understand the
maintenance and safety precautions,
starting on page 3, before using your
power scythe attachment.
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 power scythe is a high-speed
cutting 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.
STIHL's philosophy is to continually
improve all of its products. As a result,
engineering changes and improvements are made from time to time. If the
operating characteristics or the
appearance of your power scythe
attachment differs from those described
in this manual, please contact your
STIHL dealer for information and
assistance.
STIHl
© ANDREAS STIHL AG & Co. KG, 2007
0458 226 8621 A. M0,4. D7. PM. Printed in USA
1FH
English / USA
Power Tool Attachments Guide to Using this Manual
This STIHL attachment may be mounted
to different STIHL power tools.
Power tools approved for use with the
attachment are listed in the chapter on
"Approved Basic Power Tools".
The assembled combination of basic
power tool and attachment is generally
referred to as the power tool in this
manual.
The instruction manuals for the basic
power tool and the attachment contain
the information necessary for operation
of the power tool combination.
Therefore, always read both instruction
manuals before using the power tool for
the first time. Keep the manuals in a safe
place for future reference.
Pictograms
All the pictograms attached to the
machine are shown and explained in
this manual.
The operating and handling instructions
are supported by illustrations.
Symbols in text
The individual steps or procedures
described in the manual may be marked
in different ways:
: A bullet marks a step or procedure
without direct reference to an
illustration.
A description of a step or procedure that
refers directly to an illustration may
contain item numbers that appear in the
illustration.
Example:
Loosen the screw (1)
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 described below:
Warning where there is a risk of an
accident or personal injury or
serious damage to property.
Caution where there is a risk of
damaging the machine or its
individual components.
Note or hint which is not essential
for using the machine, but may
improve the operator’s understanding of the situation and result
in better use of the machine.
Note or hint on correct procedure in
order to avoid damage to the
environment.
2
FH
Safety Precautions and
Working Techniques
English / USA
Equipment and features
This instruction manual may refer to
several models with different
features. Components that are not
installed on all models and related
applications are marked with an
asterisk (*). Such components may
be available as special accessories
from your STIHL dealer.
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. If the
operating characteristics or the
appearance of your machine differ from
those described in this manual, please
contact your STIHL dealer for
assistance.
Therefore some changes, modifications
and improvements may not be covered
in this manual.
Because a power tool
power head and shaft
equipped with a power
scythe attachment is a
high-speed, fast-cutting
power tool with sharp
cutting blades, 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 of your power tool
and 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. Be sure
that anyone using it understands the
information contained in these manuals.
!Warning!
The use of this machine may be
hazardous. If the cutting tool comes in
contact with your body, it will cut you.
Use your power scythe only for cutting
grass, weeds, hedges, shrubs, scrub,
bushes and similar material. 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.
3FH
English / USA
Most of these safety precautions and
warnings apply to the use of all STIHL
power scythes. Different models may
have different parts and controls. See
the appropriate section of your power
tool and attachment instruction manuals
for a description of the controls and the
function of the parts of your model.
Safe use of a power scythe 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.
!Warning!
To reduce the risk of injury
to your eyes 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.
!Warning!
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
attachment. 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.
4
FH
English / USA
Wear an approved safety
hard hat to reduce the risk
of injury to your head
when there is a danger of
head injuries.
STIHL offers a wide range of protective
clothing and equipment.
THE POWER TOOL
For illustrations and definitions of the
attachment parts see the chapter on
“Main Parts.”
!Warning!
Never make any unauthorized
modifications to this power tool. 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 blade
contact, never carry or transport your
power tool with the cutter blades
moving.
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.
!Warning!
Always switch off the engine and fit the
scabbard over the cutter blades before
transporting the power tool over long
distances. When transporting it in a
vehicle, properly secure it to prevent
turnover, fuel spillage and damage to the
unit.
On machines with an adjustable cutter
bar: Make sure the cutter bar is secured
in position. See chapter in this
instruction manual entitled “Adjusting
Cutter Bar Angle.” On machines with a
transport position: Move cutter bar to
transport position and secure.
Before Starting
!Warning!
Always check your attachment for
proper condition and operation before
starting. Never attempt to modify the
controls or safety devices.
389BA019 KN
5FH
English / USA
!Warning!
Never use a power tool that is damaged
or not properly maintained.
Keep the handles clean and dry at all
times; it is particularly important to keep
them free of moisture, pitch, oil, grease
or resin in order for you to maintain a firm
grip and properly control your power
tool.
!Warning!
The cutting tool must be properly
tightened and in safe operating
condition. Inspect for loose parts (nuts,
screws, etc.) and for cracked, bent,
warped or damaged blades. Regularly
check the condition and tightness of the
cutter blades – with the engine stopped!
Replace damaged cutter blades before
using the power tool. Always keep
blades sharp.
STIHL recommends that you always
spray the cutter blades with STIHL resin
solvent before starting work - with the
engine stopped! You can obtain this
protective spray from your dealer. Apply
generously.
Adjust carrying harness and hand grip to
suit your size before starting work.
Starting
On machines with an adjustable cutter
bar: Secure the cutter bar in the starting
position as described in the chapter
“Starting/Stopping the Engine.” If this
starting position is not the desired
cutting position, you will then need to
carefully adjust the machine to the
desired position once the engine has
returned to idle and the blades are no
longer moving.
On machines with a defined transport
position (cutter bar folded against the
drive tube): Never start the machine in
the transport position, since the blades
are not engaged in that position and you
therefore cannot visually check to see
that they will be stopped at idle when
you start to adjust the cutter bar to the
desired cutting position (where the
blades are engaged).
Start the engine at least 10 feet
(3 meters) from the fueling spot,
outdoors only.
For specific starting instructions, see the
appropriate section of your power tool
and attachment manuals. Place the
power tool on firm ground or other solid
surface in an open area. Maintain good
balance and secure footing.
!Warning!
To reduce the risk of injury from blade
contact, be absolutely sure that the
cutting tool is 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 and
move the blades on the cutting tool.
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).
!Warning!
Your power tool is a one-person
machine. Do not allow other persons in
the general work area, even when
starting.
6
FH
English / USA
See also the Safety Precautions on
Starting in the instruction manual of the
power tool.
Important Adjustments
!Warning!
To reduce the risk of personal injury from
loss of control 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 the power tool 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.
Your right hand should grip the rear
handle. This also applies to left-handers.
!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. 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!
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
002BA057 KN
hold the machine above shoulder
height.
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.
7FH
English / USA
!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.
Control dust at the source where
possible. Use good work practices, such
as 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.
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.
See section of your power tool
instruction manual on the proper use of
the slide control.
!Warning
The cutter blades continue to move for a
short period after the throttle trigger is
released (flywheel effect).
Accelerating the engine while the blades
are 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 blades moving while the engine
is idling.
!Warning!
On units with an adjustable cutter bar:
Carefully adjust the cutter bar to the
desired cutting position.To reduce the
risk of injury, never touch the blades
while making adjustments. Only adjust
the cutter bar when the blades are no
longer moving.
!Warning
The power tool
15m (50ft)
falling objects or inadvertent contact with
the moving cutter blades of your power
tool always keep bystanders at least
50 feet (15m) away when the power tool
is running.
Stop the engine and cutting tool
immediately if you are approached.
has a large range.
In order to reduce
the risk of personal
or even fatal injury
to bystanders from
!Warning!
Before you start work, examine the work
area for stones, fence wire, metal or
other solid objects which could damage
the cutter blades.
Take particular care when cutting next to
wire fences. Do not touch the wire with
the cutting blades. When working close
to the ground, make sure that no sand,
grit or stones get between the cutter
blades.
8
FH
English / USA
Striking solid foreign objects such as
stones, fence wire or metal could
damage the cutting attachment and may
cause blades to crack, chip or break.
STIHL does not recommend the use of
your power tool when cutting in areas
where the blades could contact such
objects.
!Warning
Observe the cutting blades at all times –
do not cut any areas that you cannot
see. When cutting the top of a taller
hedge, check the other side of the hedge
frequently for bystanders, animals and
obstructions.
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.
!Warning!
If the cutting tool becomes clogged or
stuck, always turn off the engine and
make sure the cutting tool has stopped
before cleaning. Grass, weeds, etc.
should be cleaned off the cutting tool at
regular intervals.
Check the cutting blades at regular short
intervals during operation, or
immediately if there is a noticeable
change in cutting behavior:
– Shut off the engine.
– Wait until the cutting blades have
come to a complete standstill.
– Check condition and tightness, look
for cracks.
– Check sharpness.
– Replace damaged or dull cutting
tools immediately, even if they have
only superficial cracks.
!Warning
The gearbox becomes hot during
operation. To reduce the risk of burn
injury, do not touch the gear housing
when it is hot.
After Finishing Work
Always clean dust and dirt off the
machine – do not use any grease
solvents for this purpose.
Spray the blades with STIHL resin
solvent. Start and run the engine briefly
so that the solvent is evenly distributed.
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 power tool and
attachment instruction manuals. Please
refer to the maintenance chart(s) and
maintenance notes in these manuals.
9FH
English / USA
Using the Machine
!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. Do not attempt
any maintenance or repair work not
described in your power tool and
attachment instruction manuals. Have
such work performed by your STIHL
servicing dealer only.
Wear gloves when handling or
performing maintenance on blades.
!Warning!
Never repair damaged cutting attachments by welding, straightening or
modifying the shape. This may cause
parts of the cutting tool to come off and
result in serious or fatal injuries.
Keep the cutting tool sharp. Tighten all
nuts, bolts and screws, except the
carburetor adjustment screws, after
each use.
Store the power tool in a dry and high or
locked location out of reach of children.
Do not use your power scythe
attachment during other people's rest
periods.
General
The power scythe is used at ground
level. As its blades operate like a mower
bar, the unit is ideal for cutting scrub,
thicket, reed, wild growth and hard
grasses. The power scythe is
particularly suitable for applications in
busy areas, such as traffic islands or
parks, because cuttings are not caught
and thrown by the blades.
Preparations
Always wear a harness.
Do not throw cuttings in
the rubbish bin (garbage
can) - they can be
composted!
225BA007 KN
Cutting Technique
Working position and method are
exactly the same as for a brushcutter.
The cutter bar is swept to and fro in an
arc just above the ground.
10
FH
English / USA
Approved Basic Power
Tools
Operation of STIHL power scythe
attachments is permitted only with the
following basic power tools:
1)
STIHL FS 83
STIHL FS 110
STIHL FC 85, STIHL FC 110,
STIHL FR 85, STIHL FH 75,
STIHL HL 73, STIHL HL 75,
STIHL HL 100, STIHL KW 85
Loop-handled machines must be
equipped with a barrier bar before
using the power scythe attachment.
Other combinations of the
attachment and non-approved basic
power tools are not permitted since
they may result in accidents or
serious personal injury.
, STIHL FS 851),
1)
, STIHL FC 83,
Mounting the Attachment
L
Preparations
: Loosen the clamp screws on the
basic power tool’s gearbox housing
and pull the gearbox off the drive
tube.
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 = 0.9" (22 mm). If
necessary, 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.
402BA001 KN
10
9
5
381BA015 KN
Mounting the Cutting Head
: Loosen the clamp screws (9).
: Push the gearbox (10) on to the
drive tube (5) – turn the gearbox
back and forth at the same time.
9
225BA001 KN
1)
Loop-handle and bike-handled
versions
11FH
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