Stihl Fs36 Manual FS 36, 40

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BA_U1_82_01.fm Seite 0 Donnerstag, 22. Mai 2003 1:19 13

STIHL FS 36

Instruction Manual

&RQWHQWV
Parts and Controls
Safety Precautions and
Working Techniques
Assembling the Trimmer
Mounting the Cutting Head
- STIHL "Autocut 11-2"
- STIHL "Polycut 10-3"
- STIHL "Polycut 5-3"
Fuel Mix
Fueling
Starting
Cleaning the Air Filter
Adjusting the Carburetor
Motormanagement
General Notes on Operation
Checking the Spark Plug
Lubricating the Flexible Shaft
Spark Arrester in Muffler
Storing the Machine
Maintenance Chart
Specifications
Special Accessories
Andreas Stihl Limited Warranty
Federal and California Emission
Control Systems Utility Engines

2
4
13
13
13
15
16
16
17
20
21
21
22
22
23
24
24
25
26
26

27

This manual contains warnings,
operating and safety precautions for the
STIHL FS 36 and FS 40 trimmers.
Pay special attention to the safety
precautions outlined on pages 4 to 11.

Allow only persons who understand this
manual to operate your trimmer.
To receive maximum performance and
satisfaction from your STIHL trimmer, it
is important that you read and understand the maintenance and safety precautions before using your trimmer.
Contact your STIHL dealer or the STIHL
distributor for your area if you do not
understand any of the instructions in this
manual.

:DUQLQJ

Because a trimmer 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. Make sure your unit is
equipped with the proper deflector,
handle and harness for the type of
cutting attachment being used. Always
wear proper eye protection.
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 trimmer differ from
those described in this manual, please
contact your STIHL dealer for information and assistance.

Printed on chlorine-free paper

 2000 Andreas Stihl AG & Co., Waiblingen
0458 342 3021 A. M4. C0. PM. Printed in USA



3DUWVDQG&RQWUROV

350BA001

1 = Loop handle
2 = Stop slide
3 = Throttle trigger interlock
4 = Starter grip
5 = Spark plug boot
6 = Fuel filler cap
7 = Machine support
8 = Throttle cable
9 = Handle hose
10 = Throttle trigger
11 = Carburetor adjusting screws



355BA024

350BA002

12 = Fuel pump
13 = Air filter cover / Choke
14 = Muffler
(with spark arrester screen)
15 = Deflector
16 = Line limiting blade
17 = Mowing head

'HILQLWRQV
 /RRSKDQGOH
For easy control of machine during
cutting work.

 +DQGOHKRVH
For holding machine during starting
and cutting work.

 6WRSVOLGH
Switches the engine’s ignition
system off and stops the running
engine.

 7KURWWOHWULJJHU
Controls the speed of the engine.
 &DUEXUHWRUDGMXVWPHQWVFUHZV
For tuning carburetor.







7KURWWOHWULJJHULQWHUORFN
Must be depressed before the
throttle trigger can be activated.
6WDUWHUJULS
The grip of the pull starter, which is
the device to start the engine.
6SDUNSOXJERRW
Connects the spark plug to the
ignition wire.



)XHOILOOHUFDS
For closing the fuel tank.



0DFKLQHVXSSRUW
For resting machine on the ground.



7KURWWOHFDEOH
Connect operater’s control grip to
the powerhead

 /LQHOLPLWLQJEODGH
Metal blade at the deflector in order
to keep the line of the cutting head
at the proper length.
 0RZLQJKHDG
The cutting head is intended to
supplement a lawn mower
(special accessory).

 )XHOSXPS
Provides additional fuel feed for a
cold start.
 $LUILOWHUFRYHU&KRNH
Covers the air filter element/Eases
engine starting by enriching mixture.
 0XIIOHU
Attenuates exhaust noises and
diverts exhaust gases away from
operater.
 'HIOHFWRU
The defector is designed to reduce
the risk of injury from foreign objects
flung backwards toward the operater
by the cutting tool and from contact
with the cutting tool.



6DIHW\3UHFDXWLRQVDQG
:RUNLQJ7HFKQLTXHV
:DUQLQJ
Because a trimmer 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 owner’s manual
and the safety instructions periodically.
Careless or improper use of any trimmer
may cause serious or fatal injury.
Have your STIHL dealer show you how
to operate your trimmer. Observe all
applicable local safety regulations,
standards and ordinances.

:DUQLQJ

The use of any trimmer may be
hazardous. If the rotating cutting tool
comes in contact with your body, it will
cut you. When it comes in contact with
solid foreign objects such as rocks or
bits of metal, it may fling them directly or
by ricochet in the direction of bystanders
or the operator. Striking such objects
could damage the cutting attachment.
Thrown objects or damaged cutting tools
may result in serious or fatal injury to the
operator or bystanders.



:DUQLQJ

Minors should never be allowed to
use a trimmer. Bystanders, especially
children, and animals should not be
allowed in the area where a trimmer
is in use.
Never let the trimmer run unattended.

:DUQLQJ

Do not lend or rent your trimmer without
the owner’s manual. Be sure that anyone using your trimmer understands the
information contained in this manual.
Most of these safety precautions and
warnings apply to the use of all STIHL
trimmers. Different models may have
different parts and controls. See the
appropriate section of your owner’s
manual for a description of the controls
and function of the parts of your model
trimmer.
Safe use of a trimmer involves
1. the operator
2. the trimmer
3. the use of the trimmer.

7+(23(5$725
3K\VLFDO&RQGLWLRQ
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 a
trimmer when you are fatigued.
Be alert - if you get tired while operating
your trimmer, take a break.
Tiredness may result in loss of control.
Working with any trimmer can be strenuous. If you have any condition that might
be aggravated by strenuous work, check
with your doctor before operating a trimmer.

:DUQLQJ

Prolonged use of a trimmer (or other
machines) exposing the operator to
vibrations may produce whitefinger
disease (Raynaud’s phenomenon) or
carpal tunnel syndrome. These conditions reduce the hand’s ability to feel
and regulate temperature, produce
numb-ness 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 develop-

ment 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 engine
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.
Keep the AV system well maintained.
A trimmer with loose components
or with damaged or worn AV buffers
will tend to have higher vibration
levels.
Maintain a firm grip at all times, but
do not squeeze the handles with
constant, excessive pressures, 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 monitor closely the
condition of their hands and fingers. If
any of the above symptoms appear,
seek medical advice immediately.

3URSHU&ORWKLQJ

Wear proper protective clothing.

:DUQLQJ

Protect your hands with
gloves when handling the
trimmer and the cutting
tool. Heavy-duty, nonslip
gloves improve your grip and protect
your hands.

Trimmer operation can
cause serious injury to eyes,
ears and person. The
deflector provided with your
trimmer may not protect the operator
from all foreign objects (gravel, glass,
wire, etc.) thrown by the rotating cutting
attachment. Thrown objects may also
ricochet and strike the operator. Therefore, to reduce the risk of injury to your
eyes never operate a trimmer unless
wearing goggles or properly fitted safety
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 safety glasses.

:DUQLQJ

Trimmer 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.

Clothing must be sturdy and
snug-fitting, but allow
complete freedom of
movement. Avoid loosefitting jackets, scarfs, neckties, jewelry,
flared or cuffed pants, unconfined long
hair or anything that could become
caught on branches, brush or moving
parts of the unit. Wear long pants made
of heavy material to protect your legs.
Do not wear shorts, pants, sandals or
go bare foot. Secure hair so it is above
shoulder level.
Good footing is most
important in trimmer work.
Wear sturdy boots with
nonslip soles. Steeltoed
safety boots are recommended.



7+(75,00(5

3UHSDUDWLRQIRUWKHXVHRIWKH
WULPPHU

For illustrations and definitions of the
trimmer parts see the chapter on "Parts
and Controls"

Adjust hand grip according to
instructions in the ownder’s manual to
suit your size before starting work.



:DUQLQJ
Never modify a trimmer in any way. Only
attachments supplied by STIHL or
expressly approved by STIHL for use
with the specific STIHL trimmer models
are authorized. Although certain unauthorized attachments are useable for
the STIHL trimmer, their use may, in fact,
be extremely dangerous.

Improper use of any
trimmer can cause
serious or fatal
personal injury.
Read and understand all safety
instructions in your owner’s manual
before use and follow them carefully. To
reduce the risk of injury to operator from
blade contact, metal blades may be
used on FS-trimmers equipped with a
bicycle, "J" handle or loop handle with
barrier bar and not on those FS- and
FE-models with a loop handle.
Never use any metal cutting attachment
on a FS-model that has a flexible shaft.



Always check your trimmer for proper
condition and operation before starting,
particularly the throttle trigger, throttle
trigger interlock (if applicable), stop
switch, cutting tool, and deflector.

002BA051 KN

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A

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7UDQVSRUWLQJWKHWULPPHU

:DUQLQJ

Always turn off the engine and make
sure the cutting attachment has stopped before putting a trimmer down.
When transporting your trimmer in
a vehicle, properly secure it to prevent
turnover, fuel spillage and damage to
the trimmer.

Arrows on the deflector $ show the
correct direction of rotation of the cutting
tool.
The throttle trigger must move freely
and always spring back to the idle
position.The cutting tool must be
properly tightened and in safe operating
condition. Inspect for loose parts (nuts,
screws, etc.).
)XHOLQJ
Your STIHL trimmer uses an oil-gasoline
mixture for fuel (see the chapter on
"Fuel" of your owner’s manual).

:DUQLQJ

Gasoline is an extremely
flammable fuel. If spilled and
ignited by a spark or other
ignition source, it can cause
fire and serious 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.
)XHOLQJ,QVWUXFWLRQV
Fuel your trimmer in well-ventilated
areas, outdoors.

:DUQLQJ

Gasoline vapor pressure may build up
inside the gas tank of a two cycle engine
depending on the fuel used, the weather
conditions, and the venting system of
the tank. 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 trimmer
carefully so as to allow any pressure
build-up in the tank to release slowly.
Never remove fuel filler cap while engine
is running. 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 trimmer and check for leakage.

:DUQLQJ

Check for fuel leakage while refueling
and during operation. If fuel or oil
leakage is found, do not start or run the
engine until leak is fixed and spilled fuel
has been wiped away. If this happens,
change your clothing immediately.

6WDUWLQJ

:DUQLQJ

Your trimmer is a one-person
machine. Once started, it may fling
foreign objects for a great distance.

:DUQLQJ

Unit vibrations can
cause an improperly
tightened fuel cap to
loosen or come off and
spill quantities of fuel.
In order to reduce risk of fuel spillage
and fire, tighten fuel cap by hand with as
much force as possible.
The screwdriver end of the STIHL
combination wrench or other similar tool
can be used as an aid for tightening
slotted fuel caps.

To reduce the risk of eye and other injury
insure that bystanders are at least 50
feet (15 m) away. Stop the engine and
cutting tool immediately if you are
approached. Start and operate your
trimmer without assistance. For specific
starting instructions, see the appropriate
section of your manual. Place the
trimmer on firm ground or other solid
surface in an open area. Maintain a
good balance and secure footing.



:DUQLQJ

To reduce the risk of injury from loss
of control, 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
turn the cutting tool.



:DUQLQJ
When you pull the starter grip, don’t
wrap the starter rope around your hand.
Do not allow the grip to snap back, but
guide the starter rope to rewind it
properly. Failure to follow this procedure
may result in injury to hand or fingers and
may damage the starter mechanism.

With the engine running but at idle,
attach the trimmer to the spring hook of
your harness (see appropriate chapter
of this manual).

:RUNLQJ&RQGLWLRQV
Operate and start your trimmer only
outdoors in a ventilated area.

:DUQLQJ

Your trimmer
produces toxic exhaust
fumes as soon as the
engine is running. These
gases (e.g. carbon
monoxide) may be colourless and
odourless. To reduce the risk of serious
or fatal injury from inhaling toxic fumes,
never run the trimmer indoors or in
poorly ventilated locations.

:DUQLQJ

Use of this product can generate dust
and fumes containing chemicals known
to cause respiratory disease, cancer,
birth defects, or other reproductive harm.
If you are unfamiliar with the risks associated with the particular dust or fume at
issue, consult your employer, governmental agencies such as OSHA and
NIOSH and other sources on hazardous
materials. California and some other
authorities, for instance, have published
lists of substances known to cause
cancer, reproductive toxicity, etc.
Control dust and fumes at the source
where possible. In this regard use good
work practices and follow the recommendations of OSHA/NIOSH and occupational and trade associations. When the in-



halation of toxic dust and fumes cannot
be eliminated, the operator and any bystanders should always wear a respirator approved by NIOSH/MSHA for the
type of dust and / or fumes encountered.

:DUQLQJ

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.
Operate the trimmer under good
visibility and daylight conditions only.
Work carefully.
Do not cut any material other than
grass, weed or similar soft vegetation.
The cutting tools may be used only for
the operations described in your manual.

002BA057 KN
002BA056 KN

Always hold the trimmer firmly with both
hands. Wrap your fingers tightly around
the handles, keeping the handles
cradled between your thumb and forefinger. Keep your hands in this position,
to have your trimmer under control at all
times. Make sure your trimmer handles
and grip are in good condition and free
of moisture, pitch, oil or grease.



:DUQLQJ
Never attempt to operate any trimmer
with one hand. Loss of control of the
trimmer resulting in serious or fatal injury
may result.
To reduce the risk of bodily injury
resulting from loss of control and/or
contact with the cutting tool, make sure

your unit is equipped with the proper
handle and harness for the type of
cutting attachment being used (see
chart in chapter on "Selecting the
Cutting Tool").
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.
Before cutting, inspect the
area for stones, glass,
pieces of metal, trash or
other solid objects. The
cutting attachment could
throw objects of this kind.
To reduce the
risk of injury
from thrown
objects and
blade contact,
never operate a trimmer without a
properly mounted deflector. Keep the
deflector (and the skirt where appropriate) adjusted properly at all times (see
chapter on mounting the various cutting
tools of your owner’s manual). Do not
overreach. Keep proper footing and
balance at all times.

attachment perpendicular to the ground
may increase the risk of injury, since
the cutting attachment is more fully
exposed and the trimmer may be more
difficult to control. Never use your
trimmer as a hedge trimmer.
Do not operate using the starting
throttle lock as you do not have control
of the engine speed. See section of your
owner’s manual on the proper use of the
slide control.
If the cutting tool or deflector 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.

:DUQLQJ

During cutting, check the tightness and
the condition of the cutting tool at
regular intervals. If the behavior of the
tool changes, stop the engine immediately, and check the nut securing
the tool for tightness and the cutting
tool for cracks and damage. Replace
damaged cutting tools immediately.
Such tools may shatter at high speed
and cause serious or fatal injury.

:DUQLQJ

This trimmer is normally to be used at
ground level with the cutting attachment
parallel to the ground. Use of a trimmer
above ground level or with the cutting


:DUQLQJ

Keep hands and feet away
from cutting tool. Never
touch a rotating cutting tool
with your hand or any part of your body.
It continues to rotate for a short period
after the throttle trigger is released
(flywheel effect).
,PSRUWDQWDGMXVWPHQWV



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RIWKHHPLVVLRQFRQWUROGHYLFHVDQG
V\VWHPVPD\EHSHUIRUPHGE\DQ\
QRQURDGHQJLQHUHSDLUHVWDEOLVKPHQW
RULQGLYLGXDO+RZHYHULI\RXFODLP
ZDUUDQW\IRUDFRPSRQHQWZKLFKKDV
QRWEHHQVHUYLFHGRUPDLQWDLQHGSUR
SHUO\RULIQRQDSSURYHGUHSODFHPHQW
SDUWVZHUHXVHG67,+/PD\GHQ\
ZDUUDQW\

:DUQLQJ
To reduce the risk of personal injury
from loss of control or contact with the
running cutting tool, do not use a cutting
tool 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 owner’s manual.

Use only identical STIHL replacement
parts for maintenance and repair.
Use of non-STIHL parts may cause
serious or fatal injury.
Follow the maintenance and repair
instructions in the appropriate section of
your owner’s manual. Please refer to the
maintenance chart on the last pages of
this manual.

If you cannot set the correct idle speed,
have your STIHL dealer check your
trimmer and make proper adjustments
and repairs

:DUQLQJ



Always stop the engine and make sure
that the cutting tool is stopped before
doing any maintenance or repair work
or cleaning the trimmer. Do not attempt
any maintenance or repair work not
described in your owner’s manual.
Have such work performed at your
STIHL service shop only.

:DUQLQJ

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.

:DUQLQJ

Check condition of cutting tool at regular
short intervals. If behavior of tool
changes, check it immediately for
tightness or any signs of cracks in
particular. Replace damaged or dull
cutting tools immediately, even if they
have only superficial cracks. If the
blade loosens after being properly
tightened, the retaining nut may be
worn or damaged and should be
replaced. If the blade continues to
loosen, see your STIHL dealer.

:DUQLQJ

To reduce the risk of fire and burn
injuries, check fuel filler cap for leaks at
regular intervals. Use the specified
spark plug and make sure it and the
ignition lead are always in good
condition.

:DUQLQJ

Never test the ignition system with
ignition wire terminal removed from
spark plug or with unseated spark plug,
since uncontained sparking may cause
a fire.



:DUQLQJ
To reduce the risk of fire and burn injury,
use only spark plugs authorized by
STIHL. 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
attached.) A loose connection between
spark plug terminal and ignition wire
connector in the boot may create arcing
that could ignite combustible fumes and
cause a fire. Keep spark plug clean, and
make sure ignition lead is in good
condition.

Remember that the risk of forest fires is
greater in hot or dry weather.
Tighten all nuts, bolts and screws,
except the carburetor adjustment
screws, after each use.
Additionally, the daily maintenance
schedule for your trimmer set forth
in your STIHL Owner’s Manual should
be strictly followed.
For any maintenance please refer to the
maintenance chart DQGWRWKHZDUUDQW\
VWDWHPHQW near the end of this manual.
Store trimmer in a dry, high or locked
location out of reach of children.
Before storing for longer than a few
days, always empty the fuel tank.



:DUQLQJ
Do not operate your trimmer if the
muffler is damaged, missing or modified.
An improperly maintained muffler will
increase the risk of fire and hearing loss.
Never touch a hot muffler or burn will
result. If your muffler was equipped with
a spark-arresting screen to reduce the
risk of fire (e.g. in the USA, Canada and
Australia), never operate your trimmer
if the screen is missing or damaged.
Do not modify or remove any part of the
muffler or spark arresting screen.



000BA019

86,1*7+(&877,1*722/6
For an illustration of the various cutting
tools and instructions on proper
mounting see the chapter on "mounting
the cutting tools" in your owner’s manual.
8VLQJWKHPRZLQJKHDGV
The STIHL Autocut and Polycut mowing
heads produce a clean and tidy finish.
They are to be used only on trimmers
equipped with a limiter blade in the
deflector in order to keep the line at the
proper length (see "Parts and Controls"
chapter of this manual).

)6



:DUQLQJ
To reduce the risk of serious injury,
never use wire or metal-reinforced line
or other material in place of the nylon
cutting lines. Pieces of wire could break
off and be thrown at high speed toward
the operator or bystanders.
67,+/$XWRFXWPRZLQJKHDG
Nylon cutting cord advances automatically when tapped against the
ground.



002BA073 KN

1

67,+/3RO\FXWPRZLQJKHDG
Uses either nylon lines or nonrigid
plastic blades
,PSRUWDQW
Three rectangular wear limit marks are
applied to the base (periphery) of the
Polycut 10-3. To reduce the risk of
serious injury from breakage of the head
or blades, the Polycut must not be used
when it has worn as far as one of these
marks. It is important to follow the
maintenance instructions supplied with
the head!

002BA074 KN

However, the polymer bladed STIHL
"Polycut" produces a better cut if there
are no plants along the edge of the
lawn. Sharpening is not necessary
and worn cutting blades are easily
replaced.

002BA049 KN

If the lawn edges are planted with trees
or bordered by a fence etc., it is
best to use a nylon line head. It achieves
a "softer" cut with less risk of damaging
tree bark etc. than with the polymer
blades.

2

:DUQLQJ
Wear limit marks are integrated in the
base of the Polycut 5-3.
Do not use the Polycut 5-3 if one of the
circular holes  starts to become
visible or if the projecting rim  has
worn away, since the cutting tool may
otherwise shatter and flying objects
could result in injury to the operator or
bystanders.

)6

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1
1

3
342BA001

5
50 mm
(2")

2
4

2

4

0RXQWLQJWKHORRSKDQGOH

•
•
•

Fit the loop handle 
on the drive tube 15 cm $ forward of the
control handle .
Position the clamp  against the
drive tube and slide it into the loop
handle.
Fit square nut  in the loop
handle, insert the clamp screw 
from the other side and tighten
down securely.

)6

$GMXVWLQJORRSKDQGOHWRPRVW
FRPIRUWDEOHSRVLWLRQ

•
•

Release clamp screw .
Move the loop handle along the
drive tube as required retighten the clamp screw.

0RXQWLQJWKHGHIOHFWRU

•
•
•

Slip the clamp 
over the deflector 
Push the deflector onto the
bearing housing  as far as stop.
Tighten the clamp firmly.

342BA020 KN

342BA019 KN

A

342BA018 KN

6
3

3UHSDULQJWKHEUXVKFXWWHU

•


Lay brushcutter down:
loop handle and engine hood facing
downwards,
shaft facing upwards -




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Remove thrust plate
from shaft -






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DQG3RO\FXW
Slide thrust plate
onto shaft and insert
hexagon socket over
hexagon -



2

5

3

2

%ORFNLQJWKHVKDIW

342BA023 KN

4

342BA022 KN

342BA021 KN

1

)LWWLQJWKHFXWWLQJKHDG
.HHSWKHLQVWUXFWLRQVKHHW
VXSSOLHGZLWKWKHFXWWLQJKHDGLQ
DVDIHSODFH

Insert locking pin in
holes in deflector and thrust plate,
turning the latter back and forth until
the shaft blocks 







6

2

2




1

67,+/$XWRFXW
Slide upper part
onto shaft and fit
hexagon socket
over hexagon –
Place cap on upper part - turn
clockwise as far as possible on the
shaft and tighten securely

67,+/3RO\FXW
IRU)6RQO\



•
•

Screw cutting head as far as
possible clockwise on
the shaft Block the shaft Tighten the cutting head securely.
,PSRUWDQW
Remove the locking pin!

)6

•

RQWKH67,+/3RO\FXW
As described on the instruction
sheet supplied with the cutting head

7
5HPRYLQJWKHFXWWLQJKHDG

6

•
•

342BA024 KN

342BA000 KN



67,+/3RO\FXW

$GMXVWLQJWKHQ\ORQOLQH

Insert locking nut in cutting head
Screw cutting head as far as
possible clockwise on
the shaft Block the shaft Tighten the cutting head securely.

•

,PSRUWDQW
Remove the locking pin!




•

)6

Block the shaft Turn the cutting head
counterclockwise.

1

2




•
•

2

5HSODFLQJWKHQ\ORQOLQHRU
FXWWLQJEODGH

•

As described on the instruction
sheet supplied with the cutting head.

RQWKH67,+/$XWRFXW
Hold the rotating cutting head
parallel to the overgrown area lightly tap the ground - the line is
adjusted by approx. 3 cm Excessively long nylon lines are
shortened to the optimum length
by the
cutter on
the deflector Do not tap the ground several times
in succession!
The line is only adjusted when ERWK
nylon lines are DWOHDVWFP long!



)XHO0L[

Your two-stroke engine requires a
mixture of brand-name gasoline and
quality two-stroke engine oil with the
FODVVLILFDWLRQ7&
Use regular branded unleaded gasoline
with a minimum octane rating of
89 ROZ. If the octane rating of the
regular grade gasoline in your area is
lower, use premium unleaded fuel.
Fuel with a lower octane rating may
result in preignition (causing “pinging”)
which is accompanied by an increase in
engine temperature. 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 as
well. This could cause running problems
or even damage the engine. For this
reason it is essential that you use only
name branded fuels!
Use only STIHL two-stroke engine oil or
equivalent branded two-stroke aircooled engine oils with the classification
TC for mixing.
We recommend STIHL 50:1 two-stroke
engine oil since it is specially formulated
for use in STIHL engines.


Do not use BIA or TCW (two-stroke
water cooled) mix oils!
Take care when handling gasoline.
Avoid direct contact with the skin and
avoid inhaling fuel vapour.
The canister should be kept tightly
closed in order to avoid any moisture
getting into the mixture.
The fuel tank and the canister in which
fuel mix is stored should be cleaned
from time to time.
343BA027

This engine is certified to operate on
unleaded gasoline and with the
mix ratio 50:1.

)XHOLQJ

)XHOPL[DJHV
Only mix sufficient fuel for a few days
work, not to exceed 3 months of storage.
Store in approved safety fuel-canisters
only. When mixing, pour oil into the
canister first, and then add gasoline.

Before fueling, clean the filler cap and
the area around it to ensure that no dirt
falls into the tank.

Gasoline

Oil (STIHL 50:1 or
equivalent branded TC oils)

Always thoroughly shake the mixture
in the canister before fueling your
machine.

Liters

Liters (cc)

:DUQLQJ

1
5
10
15
20

0,02
0,10
0,20
0,30
0,40

(20)
(100)
(200)
(300)
(400)

Dispose empty mixing-oil canisters only
at authorized disposal locations.

In order to reduce the risk of burns or
other personal injury from escaping gas
vapor and fumes, remove the fuel filler
cap carefully so as to allow any pressure
build-up in the tank to release slowly.

:DUQLQJ

After fueling, tighten fuel cap
DVVHFXUHO\DVSRVVLEOH by hand.

)6

6WDUWLQJ

1

5

4

8
5

7

342BA028 KN

32

343BA028

8

&KDQJHWKHIXHOSLFNXSERG\
HYHU\\HDU
Before storing your machine for a long
period, drain and clean the fuel tank and
run engine until carburetor is dry.

)6

7

6

&RQWUROV





Stop switch with the positions:
 - normal - operating - position,
idle position and
 - stop position
Slide the switch in the direction of
the arrow
to stop.






Throttle interlock
Throttle trigger - with
spring-loaded tab
Detent on throttle trigger retainer



342BA025 KN

6WDUWLQJ

•
•
•



Move stop switch to position  Press and hold throttle interlock Squeeze throttle trigger until
tab can
engage in detent then release throttle trigger, tab and
throttle interlock in succession
VWDUWLQJWKURWWOHSRVLWLRQ -



342BA030 KN

10

&ROGHQJLQH
 Turn filter cover clockwise
to &+2.(.
:DUPHQJLQH
 Turn filter cover counterclockwise
to 581.
This setting also applies if the
engine has already been run, but is
still cold.

342BA032 KN

342BA031 KN

342BA029 KN

9

•
•

Lay the unit safely on the ground:
engine support and deflector for
cutting tool on the ground - the
cutting tool must not touch the
ground or any other objects! Make sure you have a firm footing:
Hold the unit with your left hand
around the handle hose and press
it ILUPO\ onto the ground thumb under the handle hose Do not stand or kneel on the drive
tube! -

•

With your right hand, slowly pull the
starter grip until you feel it engage then give it a brisk, strong pull Do not pull out the starter rope
completely - it may break! Do not let the starter grip snap
back - guide it back slowly so
that the starter rope can rewind
properly -

 Press fuel pump bulb at least five
times - bulb must be filled with fuel -



)6

9

:KHQHQJLQHEHJLQVWRILUH


if FROG:
Turn filter cover counterclockwise
until mark points to N - then
continue cranking until engine
starts if ZDUP:
continue cranking until engine
starts $VVRRQDVHQJLQHLVUXQQLQJ

•
•
•
•

if FROG:
Press throttle interlock Let engine run at full throttle for a
few minutes to warm up Release throttle interlock Turn filter cover to 581 engine idles -

)6

342BA033 KN

•
•

if ZDUP:
Press throttle interlock Squeeze throttle until tab
disengages - engine idles.

1

If the carburetor has been set correctly,
the cutting tool should not rotate when
the engine is idling!
The unit is now ready for use.
6ZLWFKLQJRII

•

Slide stop switch to position .

$WYHU\ORZWHPSHUDWXUHV
/HWHQJLQHZDUPXS

•

•
•
•

When engine has started:
Let it run at full throttle for a minute
to warm up Release throttle Turn filter cover to 581,
engine idles.

,IHQJLQHGRHVQRWVWDUW
Filter cover was not turned to 581
quickly enough after engine fired for the
first time, engine has been flooded.

Turn filter cover to 581 Set starting throttle position Start engine pull starter rope briskly 10 or 20 pulls may be needed ,IHQJLQHVWLOOGRHVQRWVWDUW

•
•
•
•
•
•
•
•
•



Slide stop switch to position 
Pull off spark plug boot Unscrew and dry spark plug Open throttle fully Pull starter rope several times to
clear combustion chamber Refit spark plug Connect spark plug terminal Slide stop switch to position  Turn filter cover to 581 even if
engine is cold! Restart the engine.



&OHDQLQJWKH$LU)LOWHU
)XHOWDQNUXQXQWLOGU\EHIRUH
UHIXHOOLQJ

4
1
2

342BA037 KN

Press fuel pump bulb at least five
times even if full of fuel.
Restart the engine!

342BA035 KN

•
•

Always replace a damaged
filter element.

342BA036 KN

3

Dirty air filters reduce engine power,
increase fuel consumption and make
starting more difficult.

•
•
•
•



•
•
•
•

Install foam filter element .
Fit the filter cover with the
choke lever  in the closed
position, i.e. choke lever must
engage filter cover.
Line up choke mark on filter cover
with . of &+2.( on housing.
Secure cover with screw.

,IWKHUHLVDQRWLFHDEOHORVVRI
HQJLQHSRZHU
Turn filter cover  to &+2.( to prevent dirt falling into the
carburetor.
Take out the screw and
pull off the filter cover without
turning it.
Take the foam filter element
out of the filter housing.
Wash the element in fresh, nonflammable cleaning solution
(e.g. warm soapy water)
and dry it off.

)6

$GMXVWLQJWKH&DUEXUHWRU
,IWKHHQJLQHUXQVXQVDWLVIDFWRULO\DW
KLJKDOWLWXGHVRUDWVHDOHYHO
Slight readjustment of the carburetor
may be necessary:

•
•
•

HL

LA

342BA044 KN

•

0RWRU0DQDJHPHQW
Exhaust emissions are controlled by the
design of the fundamental engine
parameters and components
(e.g. carburetion, ignition, timing and
valve or port timing) without the addition
of any major hardware.
Your carburetor is preset at the factory.
This is the optimum setting under the
barometric pressure and climatic
conditions at the factory and is suitable
for most operating sites.
It ensures that your machine will run
smoothly, be fuel efficient, operate
reliably and produce low emissions.
)6

•

Check the air filter
and clean it if necessary.
Check spark arresting screen (if
fitted) and clean it if necessary.
Mount the cutting head and trim
lines to correct length:
Lines must extend as far as
line limiting blade on the deflector.
Start the engine and adjust idling
speed correctly with the idle speed
adjusting screw /$the cutting tool must not rotate.
Warm up the engine.
$WKLJKDOWLWXGH
Turn the high speed adjusting
screw + and low speed adjusting
screw / clockwise (leaner) or as
far as stop.
$WVHDOHYHO
Turn the high speed adjusting
screw + and low speed adjusting
screw / counterclockwise (richer)
or as far as stop.

$GMXVWLQJLGOHVSHHG
It is usually necessary to change
the setting of the idle speed
adjusting screw/$ after every
correction to the low speed
adjusting screw /.
(QJLQHVWRSVZKLOHLGOLQJ
Turn the idle speed
adjusting screw/$
clockwise until engine runs
smoothly - cutting
tool must not rotate.
&XWWLQJWRROURWDWHVZKHQ
HQJLQHLVLGOLQJ
Turn the idle speed adjusting
screw /$ counterclockwise until
cutting tool stops rotating then back off screw about
another one half turn from that
position.
(UUDWLFLGOLQJEHKDYLRU
SRRUDFFHOHUDWLRQ
Idle setting is too lean.
Turn the low speed adjusting
screw/ counterclockwise until
engine runs and accelerates
smoothly.



*HQHUDO1RWHVRQ2SHUDWLRQ

&KHFNLQJ6SDUN3OXJ

'XULQJEUHDNLQSHULRG

If engine is down on power, difficult to
start or runs poorly at idling speed,
first check the spark plug.

A factory new machine should not be
run at high revs (full throttle off load) for
the first three tank fillings. This avoids
unnecessary 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 engine
are greater during this period.
The engine develops its maximum
power after about 5 to 15 tank fillings.

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.
$IWHUILQLVKLQJZRUN
Wait for engine to cool down. Drain the
fuel tank. Store the machine in a dry
place. Check tightness of nuts and
srews (not adjusting screws) at regular
intervals and retighten as necessary.



000BA002 KN

'XULQJRSHUDWLRQ

•

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.

Remove spark plug see chapter “Starting”:
Clean dirty spark plug.
Check electrode gap it should be 0.7mm/0.03" $ readjust if necessary.
Use only resistor type spark plugs
of the approved range.

Rectify problems which have caused
fouling of spark plug:
Incorrect carburetor setting, too much oil
in fuel mix, dirty air filter,
unfavorable running conditions, e.g.
operating at part load.

•

Fit a new spark plug after
approx. 50 operating hours or earlier if the electrodes are
badly eroded.

:DUQLQJ

To reduce the risk of fire and burn injury,
use only spark plugs authorized by
STIHL (see “Specifications”).

)6

/XEULFDWLQJWKH)OH[LEOH
6KDIW

2

1

4
000BA036 TR

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
attached.) A loose connection between
spark plug terminal and ignition wire
connector in the boot may create arcing
that could ignite combustible fumes and
cause a fire.

)6

,IVKDIWKDVWXUQHGEOXH
ILWDQHZRQH

5

•
342BA039 KN

1

342BA040 KN

3

•
•
•
•
•
•

Check film of lubricant at
regular intervals - about every 50
hours of operation if you use your
power edger daily or once a year if
you are an occasional user.
Release clamp on deflector pull off the deflector.
Release clamp  on gear housing.
Take out the fixing screw .
Pull off the bearing housing .
Pull the flexible shaft  out of the
drive tube.

•
•
•
•
•
•

Use STIHL multipurpose grease
0781 120 1109 to coat dry areas
of the shaft Push shaft into the drive tube turn it back and forth until distance
$ is less than 15 mm (0.6").
Push bearing housing onto drive
tube turn output shaft back and forth.
Line up holes for fixing screw.
Insert and tighten down the fixing
screw.
Tight the clamp on the bearing
housing.
Mount the deflector as described in "Assembling the
Trimmer".



6SDUN$UUHVWHULQ0XIIOHU

6WRULQJWKH0DFKLQH

For periods of about 3 months or longer:

•
•
•
•

343BA052

•

Drain and clean the fuel tank.
Run engine until carburetor is dry this helps prevent the carburetor
diaphragms sticking together.
Remove, clean and inspect the
cutting tool.
Thoroughly clean the machine pay special attention to the
cylinder fins and air filter.
Store the machine in a dry, high or
locked location - out of the reach
of children and other unauthorized
persons.

f the engine is low on power, check the
spark arrester inside the muffler.

•
•
•
•
•
•



Slacken off the screws ,
don’t remove them.
Pull the spark arrester out from
behind the cover .
Clean the spark arrester if
necessary.
If spark arrester is damaged or
coked up, fit a new one.
Reftit the spark arrester.
Assemble in the reverse sequence.

)6

Complete machine
Throttle trigger, stop switch
Air filter
Filter in fuel tank
Fuel tank
Carburetor
Spark plug
Cooling air inlets
Spark arrester in muffler
All accessible screws and nuts
(not adjusting screws)
Rubber vibration buffers
Cutting tool

Flexible drive shaft

The user of this unit should carry out
only the maintenance operations
described in this manual. Other repair
work may be performed only by an
authorized STIHL Service dealer.

)6

Visual inspection (condition, leaks)
Clean
Check operation
Clean
Replace
Check
Replace
Clean
Check idle adjustment cutting tool must not turn
Readjust idle
Readjust electrode gap
Visual inspection
Clean
Inspect
Clean or replace
Retighten
Have replaced by STIHL dealer
Visual inspection
Replace
Check tightness of cutting tool
Visual inspection
Lubricate

:DUUDQW\FODLPVIROORZLQJUHSDLUV
FDQEHDFFHSWHGRQO\LIWKHUHSDLU
KDVEHHQSHUIRUPHGE\DQDXWKRUL]HG
67,+/6HUYLFHGHDOHUXVLQJRULJLQDO
67,+/VSDUHSDUWV

x

see page:

as required

if damaged

if faulty

monthly

weekly

after each
refueling stop

after finishing
work or daily

Please note that the following maintenance intervals apply for normal operating conditions
only. If conditions are difficult or your daily working time is longer than normal, shorten the
specified intervals accordingly.

before
starting work

0DLQWHQDQFH&KDUW

x
x

x

x
x

x
x

x
x
x
x

x
x

x
x
x

17-20
20
20
17
17
17
21
21
21

x
x
x

x
x

x

24
24

x
x
x

x
x

x

x

x
x
x

13-15
13-15
13-15
23
23

Original STIHL parts can be identified
by the STlHL part number, the
T logo and the STIHL parts
symbol  The symbol may appear
alone on small parts.



6SHFLILFDWLRQV
(QJLQH
Single cylinder two-stroke engine
Displacement:
30.2 cm3
(1.84 cu.in)
Bore:
34.8 mm (1.37 in)
Stroke:
31.8 mm (1.25 in)
Power to ISO 8893: 0.7 kW (0.95 bhp)
Max. engine speed
with cutting head:
10 000 r.p.m.
(speed limited by control valve)
Max. output shaft speed
(tool mounting):
9 300 r.p.m.
Idle speed:
3 100 r.p.m.
,JQLWLRQ6\VWHP
Type: Electronic (breakerless) magneto
ignition
Spark plug
GM AC CSR 45,
(suppressed):
Champion RCJ8
or NGK BMR 6A;
Electrode gap:
0.7...0.8 mm
(0.03")
Spark plug thread:
M 14 x 1.25;
9.5 mm (0.37 in)
long
)XHO6\VWHP
Carburetor:

Air filter:
Fuel tank capacity:
Fuel mixture:



:HLJKW
without cutting tool
and deflector:
FS 36:
FS 40:

6SHFLDO$FFHVVRULHV
4.6 kg (10.1 lb)
4.7 kg (10.4 lb)

67,+/$XWRFXWFXWWLQJKHDG

Replacement nylon line
2.0 mm/0.08" dia., green
(15 m/50 ft)
0000 930 2588
67,+/3RO\FXWFXWWLQJKHDG

Replacement blades
(set of 12)
4111 007 1001
Replacement nylon line
2.4 mm/0.095" dia., orange
(15 m/50 ft)
0000 930 2587
2.7 mm/0.105" dia.,red
(10.7 m/35 ft)
0000 930 2586
67,+/3RO\FXWFXWWLQJKHDG

Replacement blades
(set of 12)
4111 007 1001
2WKHU6SHFLDO$FFHVVRULHV
Safety goggles

All position diaphragm carburetor
with integral fuel
pump
Foam element
0.51 l (1.1 US pt)
See chapter “Fuel”

Rust plate

4130 713 1501

STIHL Gear lubricant for hedge trimmers
(80 g/3 oz tube)
0781 120 1109
(225g/8 oz tube)
0781 120 1110

)6

67,+/,QFRUSRUDWHG/LPLWHG:DUUDQW\)HGHUDODQG
&DOLIRUQLD(PLVVLRQ&RQWURO6\VWHPV8WLOLW\(QJLQHV
Source Exif Data: 
File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.3
Linearized                      : Yes
Encryption                      : Standard V1.2 (40-bit)
User Access                     : Print, Fill forms, Extract, Assemble, Print high-res
Create Date                     : 2000:06:19 13:15:11Z
Modify Date                     : 2005:02:18 12:03:02-05:00
Subject                         : Gebrauchsanleitung
Page Count                      : 31
Creation Date                   : 2000:06:19 13:15:11Z
Producer                        : Acrobat Distiller 4.0 for Windows
Mod Date                        : 2005:02:07 13:54:10+01:00
Author                          : D1/MTG-be
Metadata Date                   : 2005:02:07 13:54:10+01:00
Title                           : STIHL FS 36, 40
Description                     : Gebrauchsanleitung
Creator                         : D1/MTG-be

EXIF Metadata provided by EXIF.tools