Stihl FS 230 User manual

FS 230
2 - 19 Instruction Manual

Contents
1 Introduction................................................. 2
2 Guide to Using this Manual.........................2
3 Overview..................................................... 2
4 Safety Precautions......................................3
5 Preparing Trimmer for Operation................ 9
6 Assembling the Trimmer............................. 9
7 Adjusting Trimmer for User....................... 11
8 Mixing Fuel and Refueling the Brushcutter
.................................................................. 12
9 Starting and Stopping the Engine............. 13
10 Testing the Trimmer..................................14
11 Operating the Trimmer..............................14
12 After Finishing Work..................................15
13 Transporting..............................................15
14 Storing.......................................................15
15 Cleaning....................................................16
16 Maintenance............................................. 16
17 Repairing...................................................17
18 Troubleshooting........................................ 17
19 Specifications............................................19
20 Combinations of Cutting Attachments,
Deflectors and Carrying Systems............. 19
21 Spare Parts and Accessories....................19
22 Disposal.................................................... 19
1 Introduction
Dear Customer,
Thank you for choosing STIHL. We develop and
manufacture our quality products to meet our
customers’ requirements. The products are
designed for reliability even under extreme con‐
ditions.
STIHL also stands for premium service quality.
Our dealers guarantee competent advice and
instruction as well as comprehensive service
support.
STIHL expressly commit themselves to a sus‐
tainable and responsible handling of natural
resources. This user manual is intended to help
you use your STIHL product safely and in an
environmentally friendly manner over a long
service life.
We thank you for your confidence in us and hope
you will enjoy working with your STIHL product.
Dr. Nikolas Stihl
IMPORTANT! READ BEFORE USING AND
KEEP IN A SAFE PLACE FOR REFERENCE.
2 Guide to Using this Manual
2.1 Applicable Documentation
Local safety regulations apply.
► Read, understand and save the following
documents in addition to this instruction man‐
ual:
–Instruction manual and packaging of the
cutting attachment you are using
2.2 Symbols used with warnings in
the text
WARNING
■ This symbol indicates dangers that can cause
serious injuries or death.
► The measures indicated can avoid serious
injuries or death.
NOTICE
■ This symbol indicates dangers that can cause
damage to property.
► The measures indicated can avoid damage
to property.
2.3 Symbols in Text
This symbol refers to a chapter in this
instruction manual.
3 Overview
3.1 Brushcutter
20
11
10
8
9
6
5
16
15
14
13
17
19
18
1
2
3
4
7
#
12
26
21
23
24
25
22
00000100217_001
English
2 0458-733-0121-C
© ANDREAS STIHL AG & Co. KG 2022
0458-733-0121-C. VA0.D22.
Printed on chlorine-free paper Printing inks contain vegetable oils, paper can be recycled.
Translation of Original Instruction Manual 0000010110_001_GB

1 Filter cover
Covers the air filter.
2 Air filter
The air filter filters the air entering the engine.
3 Choke lever
The choke lever helps start the engine.
4 Manual fuel pump
The manual fuel pump makes it easier to start
the engine.
5 Spark plug boot
Connects the ignition lead to the spark plug.
6 Spark plug
Ignites the fuel-air mixture in the engine.
7 Muffler
Reduces brushcutter noise emissions.
8 Starter grip
The starter grip is used for starting the
engine.
9 Carburetor adjusting screws
For tuning the carburetor.
10 Fuel tank cap
The fuel tank cap closes the fuel tank.
11 Handle
The handle is for holding and controlling the
brushcutter.
12 Throttle cable
Connects the throttle trigger to the engine.
13 Control handle
The control handle is used for operating,
holding and controlling the brushcutter.
14 Slide control
Slide control is used to start, operate and stop
the engine.
15 Throttle trigger lockout
The throttle trigger lockout unlocks the throttle
trigger.
16 Throttle trigger
The throttle trigger is used to control the
engine speed.
17 Shaft
The shaft connects all components.
18 Carrying ring
The carrying ring is for attaching the carrying
system.
19 Handlebar clamp
The handlebar clamp connects the handlebar
to the shaft.
20 Handlebar
The handlebar connects the control handle
and handle with the shaft.
21 Deflector for metal cutting attachments
The deflector for metal cutting attachments
protects the user from flying debris and con‐
tact with the metal cutting attachment.
22 Grass cutting blade
The grass cutting blade cuts grass and
weeds.
23 Gear housing
The gear housing encloses the gearbox.
24 Screw plug
The screw plug closes the filler opening for
STIHL gear grease.
25 Opening for stop pin
The opening for the stop pin accommodates
the stop pin.
26 Stop pin
The stop pin blocks the shaft while a cutting
attachment is being mounted.
# Rating plate with the machine number
3.2 Symbols
Meanings of symbols that may be on the trimmer
and the deflector:
This symbol denotes the fuel tank.
This symbol denotes the manual fuel
pump.
This symbol denotes the starter grip
and the engine is started with the slide
control in this position.
Engine is operated with the slide control in
this position.
Engine is stopped when the slide con‐
trol is in this position.
Slide control is moved in this direction to
stop the engine.
Engine is started with the choke lever in
this position.
Engine is made ready for start with the
choke lever in this position.
This symbol shows the direction of
rotation of the cutting attachment.
This symbol shows the rated speed of the
cutting attachment.
4 Safety Precautions
4.1 Warning Symbols
Meanings of warning signs on the trimmer:
4 Safety Precautions English
0458-733-0121-C 3

Observe safety notices and take the
necessary precautions.
Read, understand and save the
instruction manual.
Wear safety glasses, hearing protec‐
tion and a hard hat.
Wear safety boots.
Wear work gloves.
Observe safety notices on kickback
and take the necessary precautions.
Observe safety notices on flying debris
and take the necessary precautions.
15m (50ft)
Maintain safe distance.
Do not touch hot surface.
4.2 Intended use
The STIHL FS 230 brushcutter is for mowing
grass and weeds.
WARNING
■Using the brushcutter for purposes other than
those it is designed for may result in serious or
fatal injuries and damage to property.
►Use the brushcutter as described in this
User Manual.
4.3 The Operator
WARNING
■Users who have had no instruction cannot rec‐
ognize or assess the risks involved in using
the trimmer. The user or other persons may
sustain serious or fatal injuries.
► Read, understand and save the
instruction manual.
► If you pass the trimmer is on to another
user: Always give them the instruction man‐
ual.
►Make sure the user meets the following
requirements:
–The user must be rested.
–The user must be in good physical con‐
dition and mental health to operate and
work with the trimmer. If the user’s
physical, sensory or mental ability is
restricted, he or she may work only
under the supervision of or as instructed
by a responsible person.
–The user is able to recognize and
assess the risks involved in using the
trimmer.
–The user must be of legal age or is
being trained in a trade under supervi‐
sion in accordance with national rules
and regulations.
–The user has received instruction from a
STIHL servicing dealer or other experi‐
enced user before working with the trim‐
mer for the first time.
–The user must not be under the influ‐
ence of alcohol, medication or drugs.
► If you have any queries: Contact a STIHL
servicing dealer for assistance.
■ The trimmer’s ignition system produces an
electromagnetic field. This field may interfere
with some pacemakers. This can result in seri‐
ous or fatal injuries.
►If the user has a pacemaker: Make sure the
pacemaker is not affected.
4.4 Clothing and equipment
WARNING
■Long hair can be drawn into the brushcutter
during operation. This may result in serious
injury to the user.
►Tie up and confine long hair above your
shoulders.
■ Objects can be thrown at high speed during
operation. This may result in injury to the user.
► Wear close-fitting safety glasses.
Suitable safety glasses are tested in
accordance with EN 166 or national
regulations and available commer‐
cially with the corresponding mark‐
ing.
►Wear face protection.
► Wear long trousers made from resistant
material.
■ Noise is generated during operation. Noise
can damage your hearing.
English 4 Safety Precautions
4 0458-733-0121-C

► Wear ear protection.
■ Falling objects can cause head injuries.
► If objects are likely to fall while work‐
ing: wear a hard hat.
■ Dust can be whipped up during operation.
Whipped up dust can damage the respiratory
passages and cause allergic reactions.
►If dust is generated: Wear a dust respirator
mask.
■ Inappropriate clothing can snag on wood,
brush or the brushcutter. Users not wearing
suitable clothing are at risk of serious injury.
►Wear close-fitting clothing.
► Remove scarves and jewelry.
■ The user may come into contact with the rotat‐
ing cutting attachment during operation. This
may result in serious injury to the user.
►Wear robust footwear.
► If you are using a metal cutting
attachment: Wear steel-toed safety
boots.
► Wear long trousers made from resistant
material.
■ When mounting and dismounting the cutting
attachment and during cleaning or mainte‐
nance, the user may come into contact with
the sharp edges of the cutting attachment or
the crosscut blade. This may result in injury to
the user.
► Wear work gloves made from resist‐
ant material.
■ Wearing unsuitable footwear may cause the
user to slip. This may result in injury to the
user.
►Wear sturdy, closed-toed footwear with
high-grip soles.
4.5 Working Area and Surround‐
ings
WARNING
■Bystanders, children and animals are not
aware of the dangers of the brushcutter or fly‐
ing debris. This may result in serious injury to
bystanders, children and animals and damage
to property.
15m (50ft)
► Do not allow bystanders,
children or animals within 15
meters of the work area.
► Maintain a clearance of 15 meters from
objects.
► Do not leave the brushcutter unattended.
► Make sure that children cannot play with
the brushcutter.
■ Hot exhaust gas is emitted through the muffler
while the engine is running. Hot exhaust gas
can ignite easily flammable materials and
cause a fire.
►Keep exhaust gas well away from easily
flammable materials.
4.6 Safe Condition
4.6.1 Brushcutter
The brushcutter is in a safe condition if the fol‐
lowing points are observed:
–The brushcutter is not damaged.
–There is no fuel leaking from the trimmer.
–The fuel tank cap is closed.
–The brushcutter is clean.
–The controls function properly and have not
been modified.
–A combination of cutting attachment and
deflector recommended in this user manual is
mounted.
–The cutting attachment and deflector are prop‐
erly mounted.
–Genuine STIHL accessories for this brushcut‐
ter are fitted.
–The accessories are correctly attached.
–All accessible screws and fastening parts are
firmly tightened.
–Cutting attachment does not run while engine
is idling.
WARNING
■If not in safe condition, components may no
longer operate correctly, safety devices may
be disabled and fuel leakage may occur.
There is a risk of serious or fatal injury.
►Work only with an undamaged brushcutter.
► If fuel is leaking from the trimmer: Do not
use the trimmer and contact a STIHL dealer
for assistance.
►Close the fuel tank cap.
► If the brushcutter is dirty: Clean the brush‐
cutter.
► Never attempt to modify your brushcutter.
Exception: Mounting one of the combina‐
tions of cutting attachment and deflector
recommended in this user manual.
►If the controls do not function properly: Do
not use your brushcutter.
► Fit genuine STIHL accessories for this
brushcutter.
4 Safety Precautions English
0458-733-0121-C 5

► Mount the cutting attachment and deflector
as described in this user manual.
► Attach accessories as described in this
User Manual or in the User Manual for the
accessories.
►Tighten loose screws and fastening parts.
► If the cutting attachment rotates when the
engine is idling: Rectify the malfunction.
► Never insert objects into the openings of
the brushcutter.
► Replace worn or damaged labels.
► If you are unsure: Consult a STIHL servic‐
ing dealer.
4.6.2 Deflector
The deflector is in a safe condition if the following
points are observed:
–The deflector is not damaged.
–If you are using the line limiting blade and
skirt: Line limiting blade and skirt are correctly
fitted.
WARNING
■ If components do not comply with safety
requirements, they will no longer function
properly and safety devices may be rendered
inoperative. This can result in serious injuries.
►Work only with an undamaged deflector.
► If you are using the line limiting blade and
skirt: Work with a correctly fitted line limiting
blade and skirt.
►If you have any queries: Contact your
STIHL servicing dealer.
4.6.3 Metal cutting attachment
The metal cutting attachment is in a safe condi‐
tion if the following points are observed:
–Metal cutting attachment and mounting hard‐
ware are undamaged.
–Metal cutting attachment is not warped.
–Metal cutting attachment is properly mounted.
–Metal cutting attachment is correctly sharp‐
ened.
–Cutting edges of the metal cutting attachment
have no burrs.
–The wear limits are not exceeded.
–If a metal cutting attachment not manufactured
by STIHL is used, it must not be heavier,
thicker, of a different shape, of a lower quality,
or larger in diameter than the largest metal
cutting attachment approved by STIHL.
WARNING
■If it is not in an safe condition, parts of the
metal cutting attachment may come off and be
thrown at high speed. They may cause serious
injury to persons.
► Never work with a damaged metal cutting
attachment or damaged mounting hard‐
ware.
►Sharpen the metal cutting attachment cor‐
rectly.
► Deburr the cutting edges with a file.
► Have the metal cutting attachment bal‐
anced by a STIHL servicing dealer.
► Observe and remain inside the wear limits.
► Use a metal cutting attachment specified in
these instructions for use.
► If you have any doubts, be sure to consult a
STIHL dealer.
4.7 Fuel Mixture and Refueling
WARNING
■ This brushcutter requires a fuel mixture of gas‐
oline and two-stroke engine oil. Mixed fuel and
gasoline are extremely flammable. If fuel mix‐
ture or gasoline make contact with open fire or
hot objects, they can cause a fire or explo‐
sions. Persons may be seriously or fatally
injured and property may be damaged.
►Protect fuel mixture and gasoline from heat
and fire.
► Do not spill fuel mixture or gasoline.
► If fuel is spilled: Wipe up fuel with a cloth
and do not attempt to start engine until all
parts of the brushcutter are dry.
►Do not smoke.
► Never refuel near a fire.
► Shut off the engine and allow it to cool
down before refueling.
► Start the engine at least 3 meters from the
fueling spot, outdoors only.
■ Inhaling fuel fumes and gasoline fumes can
have toxic effects.
► Avoid inhaling fuel fumes or gasoline
fumes.
► Refuel in a well-ventilated location.
■ The brushcutter becomes hot during opera‐
tion. The fuel expands and excess pressure
can build up in the tank. Fuel can escape as a
spray when the fuel tank cap is opened. The
escaping fuel can ignite. This may result in
serious injury to the user.
►Allow the brushcutter to cool down first and
then open the fuel tank cap carefully.
■ Clothing that has been in contact with fuel or
gasoline will ignite more easily. Persons may
be seriously or fatally injured and property
may be damaged.
English 4 Safety Precautions
6 0458-733-0121-C

► If your clothing comes into contact with fuel
or gasoline: Change your clothing.
■ Fuel mix, gasoline and two-stroke engine oil
can harm the environment.
► Do not spill fuel, gasoline or two-stroke
engine oil.
► Dispose of fuel mix, gasoline and two-
stroke engine oil in accordance with local
regulations and environmental require‐
ments.
■Fuel, gasoline or two-stroke engine oil can
cause irritation if they come into direct contact
with the skin or eyes.
►Avoid contact with fuel, gasoline and two-
stroke engine oil.
► If skin contact occurs: Wash affected areas
of skin with plenty of water and soap.
► If the event of contact with eyes: Rinse
eyes with plenty of water for at least
15 minutes and consult a doctor.
■The brushcutter's ignition system produces
sparks. Unconfined sparks may cause a fire or
an explosion in an easily combustible or explo‐
sive environment. Persons may be seriously
or fatally injured and property may be dam‐
aged.
►Use the spark plugs described in this
instruction manual.
► Insert and tighten down the spark plug.
► Connect the spark plug boot and press it
down firmly.
■ The brushcutter can become damaged if it is
run with a fuel mixture that includes unsuitable
gasoline or an unsuitable two-stroke engine
oil, and also if an incorrect mix ratio of gaso‐
line and two-stroke engine oil is used.
►Mix the fuel as described in this User Man‐
ual.
■ The mixture of gasoline and two-stroke engine
oil can separate or age if it is stored for a long
period. The brushcutter can be damaged if it is
used with a fuel mix that has become separa‐
ted or has aged.
►Before refueling the brushcutter: Thor‐
oughly mix the fuel.
► Use a mixture of gasoline and two-stroke
engine oil that is not older than 30 days
(STIHL MotoMix: 5 years).
4.8 Working
WARNING
■If the engine is not started properly, the user
may lose control of the trimmer. This may
result in serious injury to the user.
►Start the engine as described in this instruc‐
tion manual.
► If the cutting attachment is touching the
ground or objects: Do not start the engine.
■The slide control is in position for
engine starts. Engine RPM in posi‐
tion is higher than idle speed and the
cutting attachment may rotate as soon as the
engine runs. This may result in serious injury
to the user.
►Do not touch the cutting attachment.
► Start the engine as described in this instruc‐
tion manual.
■ In certain situations, the user may no longer
be able to concentrate on their work. The user
can lose control of the trimmer, stumble or fall
and be seriously injured.
►Work calmly and methodically.
► If light and visibility are poor: Do not use
your trimmer.
► Operate the trimmer alone.
► Keep the cutting attachment close to the
ground.
► Watch out for obstacles.
► Work standing on the ground and keep your
balance.
► If you start feeling fatigue: Take a break.
■ Exhaust gas is produced when the engine is
running. Breathing in exhaust gas can have
toxic effects.Breathing in exhaust gas can
have toxic effects.
►Avoid inhaling exhaust gas.
► Operate the trimmer is a well ventilated
location.
► In the event of nausea, headache, visual
disturbances, problems with hearing or diz‐
ziness: Stop work and seek medical advice.
■The user’s ability to hear and assess noises is
restricted when wearing hearing protection
with the engine running.
►Work calmly and methodically.
■ The user will not be able to control the trimmer
properly if it is operated with the slide control
in position . This may result in serious
injury to the user.
►Check that the slide control is in position
during operation.
► Start the engine as described in this instruc‐
tion manual.
■ The rotating cutting attachment can cut the
user. This may result in serious injury to the
user.
►Do not touch the rotating cutting attach‐
ment.
4 Safety Precautions English
0458-733-0121-C 7

► If the cutting attachment is blocked by an
object: Shut off the engine. before clearing
the jam.
■The machine can be damaged if you open the
throttle while the cutting attachment is blocked
by an object.
►Shut off the engine. before clearing the jam.
■ If the behavior of the trimmer changes during
operation or feels unusual, it may no longer be
in a safe condition. This may result in serious
injury to people and damage to property.
►Stop work and consult a STIHL servicing
dealer.
■ Trimmer vibrations may occur during opera‐
tion.
► Wear gloves.
► Take breaks.
► If signs of a circulatory disturbance occur:
Consult a doctor.
■ If the cutting attachment makes contact with a
foreign object during operation, the object or
parts of it may be thrown at high speed. Per‐
sons may be injured or property may be dam‐
aged.
►Remove foreign objects from the working
area.
■ If the rotating cutting attachment makes con‐
tact with a hard object, sparks may occur and
the cutting attachment may be damaged.
Sparks can cause fires in a flammable envi‐
ronment. Persons may be seriously or fatally
injured, and property may be damaged.
►Do not use in a flammable environment.
► Make sure the cutting attachment is in a
safe condition.
■ Note that the cutting attachment continues to
rotate for a short period after you release the
trigger. Persons may be seriously injured.
►Wait until the cutting attachment comes to a
complete stop.
■ In an emergency, the user may start to panic
and forget to take off the carrying system. This
may result in serious injury to the user.
►Practice taking off the carrying system.
4.9 Reactive Forces
0000-GXX-3025-A1
Kickout can be caused for the following reasons:
–The shaded area or the black area of the rotat‐
ing metal cutting attachment comes into con‐
tact with a solid object and is suddenly braked.
–The rotating metal cutting attachment gets
pinched in the cut.
The risk of kickout is greatest in the black area.
WARNING
■ These situations can abruptly decelerate or
stop rotation of the cutting attachment and
cause the cutting attachment to be thrown to
the right or in the direction of the user (black
arrow). The user can lose control of the trim‐
mer. This can result in serious or fatal injuries.
►Hold the trimmer firmly with both hands.
► Use the working techniques described in
this instruction manual.
► Do not use the black area for cutting.
► Use a combination of cutting attachment,
deflector and carrying system recommen‐
ded in this instruction manual.
►Sharpen the metal cutting attachment cor‐
rectly.
► Cut with the motor running at full speed.
4.10 Transporting
WARNING
■The gearbox can get hot during operation.
There is a risk of burn injuries.
► Do not touch a hot gearbox.
■ The trimmer may turn over or shift during
transport. This may result in personal injuries
and damage to property.
►Shut off the engine.
► If a metal cutting attachment is mounted: Fit
the transport guard.
► Secure the trimmer with lashing straps or a
net to prevent it turning over and moving.
■ The muffler and engine may be hot after a
period of operation. There is a risk of burn
injuries.
English 4 Safety Precautions
8 0458-733-0121-C

► Carry the trimmer properly balanced by the
drive tube with the cutting attachment
behind you.
4.11 Storing
WARNING
■Children are not aware of and cannot assess
the dangers of a trimmer and can be seriously
injured.
►Shut off the engine.
► If a metal cutting attachment is mounted: Fit
the transport guard.
► Store the trimmer out of the reach of chil‐
dren.
■ Dampness can corrode the electrical contacts
on the trimmer and metal components. This
can damage the trimmer.
►Store the trimmer in a clean and dry condi‐
tion.
4.12 Cleaning, maintenance and
repair
WARNING
■ The cutting attachment can start rotating unin‐
tentionally if the engine is running during
cleaning, maintenance or repair operations.
This may result in serious injury to people and
damage to property.
►Shut off the engine.
■ The muffler and engine may be hot after a
period of operation. This can result in burn
injuries.
►Wait until the muffler and engine cool down.
■ The gear housing can get hot during opera‐
tion. There is a risk of burn injuries.
► Do not touch a hot gear housing.
■ Aggressive cleaning agents, a water jet or
pointed objects can damage the trimmer,
deflector or the cutting attachment. If the trim‐
mer, deflector and cutting attachment are not
cleaned correctly, components may no longer
function properly or safety devices may be
rendered inoperative. Persons may be seri‐
ously injured.
► Clean the brushcutter, deflector and cutting
attachment as described in this User Man‐
ual.
■If the brushcutter, deflector or cutting attach‐
ment is not maintained or repaired as descri‐
bed in this User Manual, components may no
longer function properly or safety devices may
be rendered inoperative. This can result in
serious or fatal injuries.
► Maintain or repair the brushcutter and the
deflector as described in this User Manual.
► Maintain the cutting attachment as descri‐
bed in the User Manual supplied with the
cutting attachment being used or on the
cutting attachment’s packaging.
■The user can be cut by the sharp cutting
edges while cleaning or maintaining cutting
attachments. This may result in injury to the
user.
► Wear work gloves made of robust
material.
5 Preparing Trimmer for
Operation
5.1 Preparing the Brushcutter for
Operation
The following steps must be performed before
commencing work:
► Ensure that the following components are in a
safe condition:
–Brushcutter, 4.6.1.
–Deflector, 4.6.2.
–Metal cutting attachment, 4.6.3.
►Clean the brushcutter, 15.1.
►Mount the bike handle, 6.1.
► Select combination of cutting attachment,
deflector and carrying system, 20.
►Mount the deflector, 6.2.
►Mount the metal cutting attachment, 6.3.1.
►Fill the brushcutter with fuel, 8.2.
►Fit and adjust the carrying system, 7.1.
►Adjust the bike handle, 7.2.
►Balance the brushcutter, 7.3.
►Check the controls, 10.1.
► If you cannot carry out this work: Do not use
your brushcutter and contact your STIHL
authorized dealer for assistance.
6 Assembling the Trimmer
6.1 Mounting the Bike Handle
► Shut off the engine.
5 Preparing Trimmer for Operation English
0458-733-0121-C 9

a
1
4
3
5
2
8
7
6
00000100215_001
► Unscrew the screws (1).
► Fit the friction liner (7) together with the lower
clamp (8) so that distance a = 32.5 cm.
► Fit the clamp (4) together with the friction
liner (5).
► Place the handlebar (3) in the clamping
piece (4).
While doing so, do not clamp the curved part
of the handlebar (3).
► Fit the upper clamping shell (2) so that the
holes are in alignment.
► Insert the screws (1).
► Swing the handlebar (3) up and line it up with
the cutting attachment.
► Tighten the screws (1) firmly.
13
14
2
12
10
9
11
00000100216_001
► Guide operating handle (9) through under the
shaft (13) and the control handle (9), without
twisting it.
The throttle cable (12) is now positioned under
the shaft (13).
► Remove the screw (11).
► Position the control handle (9) on the handle‐
bar (2), trigger facing the gearbox, and line up
the hole in the control handle (9) with the hole
in the handlebar (2).
► Fit the nut (10).
► Insert the screw (11) and secure it firmly.
► Using 2 cable ties (14) secure the throttle
cable (12) to the shaft (13).
It is not necessary to remove the bike handle
again.
6.2 Mounting the deflector
► Shut off the engine.
1
6
2
2
3
4
5
0000-GXX-B463-A0
► Position the deflector (3) on the shaft (2) in
such a way that the recess (4) rests against
the gearbox (1).
► Place the clamp (6) on the shaft (2) in such a
way that the holes are aligned.
► Insert screws (5) and tighten them.
Do not remove the deflector (3) again.
6.3 Removing and Installing Metal
Cutting Attachment
6.3.1 Mounting the metal cutting attachment
► Shut off the engine.
3
2
1
0000-GXX-4783-A0
► If the sleeve (3) between the shaft (1) and the
sealing ring (2) is missing: Do not use brush‐
cutter and contact your STIHL authorized
dealer for assistance.
English 6 Assembling the Trimmer
10 0458-733-0121-C

4
5
6
7
8
1
9
0000-GXX-4723-A0
► Place the thrust plate (8) on the shaft (1) so
that its smaller diameter faces up.
► Place the metal cutting attachment (7) on the
thrust plate (8).
► Place the thrust washer (6) on the metal cut‐
ting attachment (7) so that its convex side
faces up.
► Place the rider plate (5) on the thrust washer
(6) so that its closed side faces up.
► Insert the stop pin (9) in the bore up to the limit
stop and hold it depressed.
► Rotate the metal cutting attachment (7) coun‐
terclockwise until the stop pin (9) engages in
position.
The shaft (1) is now blocked.
► Fit the nut (4) counterclockwise and tighten it
down firmly.
► Remove the stop pin (9).
6.3.2 Removing the Metal Cutting Attach‐
ment
► Shut off the engine.
► Insert the stop pin in the bore as far as stop
and hold it depressed.
► Rotate the metal cutting attachment clockwise
until the stop pin engages in position.
The shaft is now blocked.
► Unscrew the mounting nut clockwise.
► Remove stop pin.
► Remove the rider plate, thrust washer, metal
cutting attachment and thrust plate.
7 Adjusting Trimmer for User
7.1 Fitting and Adjusting the Carry‐
ing System
1 3
22
0000-GXX-4594-A0
► Put on the shoulder strap (1) or full harness
(3).
► Adjust the shoulder strap (1) or full harness (3)
so that the carabiner (2) is about a hand’s
width below your right hip.
7.2 Adjusting the Bike Handle
The bike handle can be set to different positions
to suit the height and reach of the user.
► Shut off the engine.
► Hook the brushcutter from the carrying ring
into the carabiner of the carrying system.
2
1
0000-GXX-7849-A0
► Undo the screws (1).
► Swing the bike handle (2) to the required posi‐
tion.
► Tighten down the screws (1) firmly.
7.3 Balancing the Trimmer
0000-GXX-4724-A0
The cutting attachment should rest lightly on the
ground.
► Shut off the engine.
1
2
0000-GXX-4722-A0
► Connect the carrying ring (2) to the carabi‐
ner (1).
► Wait for the trimmer to stop swinging.
7 Adjusting Trimmer for User English
0458-733-0121-C 11

► Check position of cutting attachment. If it
needs adjustment:
2
3
0000-GXX-4725-A0
► Loosen the screw (3).
► Move carrying ring (2) up or down the drive
tube until correct balanced position is reached.
► Tighten down the screw (3) firmly.
8 Mixing Fuel and Refueling
the Brushcutter
8.1 Mixing fuel
A video is available for this chapter.
www.stihl.com/sxpweh
The fuel required for this brushcutter is a mixture
of gasoline and two-stroke engine oil, in a mixing
ratio of 1:50.
STIHL recommends you use STIHL MotoMix.
If you mix the fuel yourself, use only STIHL two-
stroke engine oil or another high-performance
engine oil classified as JASO FB, JASO FC,
JASO FD, ISO-L-EGB, ISO-L-EGC or ISO-L-
EGD.
STIHL specifies STIHL HP Ultra two-stroke
engine oil or an equivalent high-performance
engine oil in order to maintain emission limits
over the machine’s service life.
► Make sure that the octane number of the gas‐
oline is at least 90 RON and the ethanol con‐
tent is not more than 10% (for Brazil: 27%).
► Make sure the two-stroke engine oil you are
using meets requirements.
► Depending on the desired amount of fuel,
determine the correct amounts of two-stroke
engine oil and gasoline in a mixing ratio of
1:50. Examples for fuel mixes:
–20 ml Two-stroke engine oil, 1 l gasoline
–60 ml Two-stroke engine oil, 3 l gasoline
–100 ml Two-stroke engine oil, 5 l gasoline
► Pour two-stroke engine oil into a clean
approved fuel canister first and then add gaso‐
line.
► Mix the fuel.
8.2 Filling the brushcutter with fuel
► Shut off the engine.
► Place your trimmer on a level surface so that
the fuel tank cap faces up.
► Use a damp cloth to clean the fuel tank cap
and the area around it.
0000-GXX-4727-A0
► Turn the tank cap counterclockwise until it can
be removed.
► Remove the fuel tank cap.
NOTICE
■ Exposure to light, direct sunlight and extreme
temperatures may accelerate fuel separation
or aging. The brushcutter can be damaged if it
is used with a fuel mix that has become sepa‐
rated or has aged.
►Mix the fuel before topping up.
► Do not top up with fuel stored for more than
30 days (STIHL MotoMix: 5 years).
► When topping up, ensure that no fuel is spil‐
led and that the fuel level remains at least
15 mm under the edge of the tank.
0000-GXX-4728-A0
► Fit the fuel tank cap on the tank opening.
► Turn the tank cap clockwise and tighten it
down firmly by hand.
The fuel tank is closed.
English 8 Mixing Fuel and Refueling the Brushcutter
12 0458-733-0121-C

9 Starting and Stopping the
Engine
9.1 Selecting the correct starting
procedure
When must the engine be prepared for starting?
The engine must be prepared for starting if one
of the following conditions apply:
–The engine is at ambient temperature.
–The engine stopped when accelerated for the
first time.
–The engine stopped because the fuel tank was
empty.
►Prepare engine for start, 9.2 and then start
the engine, 9.3.
When can the engine be started without prepara‐
tion?
The engine can be started without preparation if
it has been running for at least 1 minute and only
shut down for a short work break.
►Starting the engine, 9.3.
9.2 Preparing the engine for start‐
ing
► Select the correct starting procedure.
► Place the brushcutter on a level surface so
that the cutting attachment does not touch the
ground or other objects.
► Remove the transport guard.
2
0000-GXX-6451-A0
15
3
4
► Depress the manual fuel pump (1) at least 5
times.
►Move the choke lever (2) to position .
► Press the throttle trigger lockout (4) and keep
it pressed.
► Press the throttle trigger (3) and keep it
pressed.
►Move the slide control (5) to position
and hold it there.
► Release the throttle trigger (3) and throttle trig‐
ger lockout (4).
The slide control (5) engages in position
.
0000-GXX-4729-A0
► Press the brushcutter to the ground with the
left hand on the engine.
► Pull the starter grip slowly with your right hand
until you feel it engage.
► Pull the starter grip quickly and allow the
starter rope to rewind several times until the
engine fires and stops.
► If the engine does not stop: Set the choke
lever to position so the engine does not stall
and briefly press the throttle trigger (3).
The engine runs at idling speed, and the start‐
ing process has been completed.
9.3 Starting the engine
► Select the correct starting procedure.
► Place the brushcutter on a level surface so
that the cutting attachment does not touch the
ground or other objects.
► Remove the transport guard.
0000-GXX-6452-A0
15
3
4
►Move the choke lever (1) to position .
► Press the throttle trigger lockout (4) and keep
it pressed.
► Press the throttle trigger (3) and keep it
pressed.
►Move the slide control (5) to position
and hold it there.
► Release the throttle trigger (3) and throttle trig‐
ger lockout (4).
The slide control (5) engages in position
.
9 Starting and Stopping the Engine English
0458-733-0121-C 13

0000-GXX-4729-A0
NOTICE
■ The brushcutter can be damaged if pressed
into the ground with your foot or knee.
► Press the brushcutter against the ground
with your left hand. Do not stand or kneel
on the shaft.
► Press the brushcutter against the ground with
your left hand.
► Pull the starter grip slowly with your right hand
until you feel it engage.
► Pull the starter grip quickly and allow the
starter rope to rewind several times until the
engine runs.
► Briefly press the throttle trigger (3).
The slide control (5) springs to position . The
engine runs at idling speed.
► If the cutting attachment rotates when the
engine is idling: Rectify the malfunction.
Idle speed adjustment is not correct.
► If the engine does not start: Prepare the
engine for starting and then try again to start
the engine.
9.4 Shut off the engine.
0000-GXX-6453-A0
3
1
2
► Release the throttle trigger (1) and throttle trig‐
ger lockout (2).
The cutting attachment comes to a standstill.
►Move the slide control (3) to posi‐
tion.
The engine stops.
► If the engine does not stop:
►Move the choke lever to position and
press the throttle trigger (1).
The engine stops.
► Do not use your brushcutter and contact a
STIHL servicing dealer for assistance.
There is a malfunction in the slide control.
10 Testing the Trimmer
10.1 Checking the controls
Throttle trigger lockout and throttle trigger
► Shut off the engine.
► Attempt to pull the trigger without depressing
the lockout lever.
► If the trigger can be pulled: Do not use your
trimmer and contact your STIHL dealer for
assistance.
The throttle trigger lockout is defective.
► Press the throttle trigger lockout and keep
pressed.
► Depress the throttle trigger.
► Release the throttle trigger and throttle trigger
lockout.
► If the trigger or trigger lockout is stiff or does
not spring back to the idle position: Do not use
your trimmer and contact your STIHL dealer
for assistance.
Trigger or trigger lockout is faulty.
Throttle cable adjustment
► Start the engine.
► Attempt to pull the trigger without depressing
the lockout lever.
► If the engine accelerates: Adjust the throttle
cable.
Throttle cable adjustment is not correct.
Shut off the engine.
► Start the engine.
►Move the slide control to position .
The engine stops.
► If the engine does not stop:
►Move the choke lever to position and
press the throttle trigger.
The engine stops.
► Do not use your brushcutter and contact a
STIHL servicing dealer for assistance.
The slide control is defective.
11 Operating the Trimmer
11.1 Adjusting Carburetor for Opera‐
tion at High Altitude
If you use the trimmer at high altitude, the engine
will not deliver optimum power. The carburetor
setting can be adjusted to obtain optimum
engine power.
► Start the engine.
English 10 Testing the Trimmer
14 0458-733-0121-C

► Warm up the engine by opening and closing
the throttle for about 1 minute.
0000-GXX-3132-A0
H
NOTICE
■ If the trimmer is again used at a low altitude,
the engine may overheat.
► Carry out the standard setting.
► Rotate the high speed screw H clockwise
until the engine delivers optimum power.
11.2 Holding and Controlling the
Trimmer
2
1
0000-GXX-7807-A0
► Connect the carrying ring (2) to the carabi‐
ner (1).
0000-GXX-7850-A0
► Hold the trimmer firmly with your right hand on
the control handle – wrap your thumb around
the handle.
► Hold the trimmer firmly with your the left hand
on the left handle – wrap your thumb around
the handle.
11.3 Mowing
The cutting height is determined by the distance
of the cutting attachment from the ground.
0000099241-001
Mowing with a grass cutting blade
► Mow with the left part of the metal cutting
attachment.
► Move forward slowly in a controlled manner.
12 After Finishing Work
12.1 After Finishing Work
► Shut off the engine.
► Allow trimmer to cool down.
► If the trimmer is wet: Allow the trimmer to dry.
► Clean the trimmer.
► Clean the air filter.
► Clean the deflector.
► Clean the cutting attachment.
► If a metal cutting attachment is mounted: Fit
the matching transport guard.
13 Transporting
13.1 Transporting the Trimmer
► Shut off the engine.
► If a metal cutting attachment is mounted: Fit
the matching transport guard.
Carrying the trimmer
► Carry the trimmer properly balanced by the
drive tube with the cutting attachment behind
you.
Transporting the trimmer in a vehicle
► Secure the trimmer to prevent turnover and
movement.
14 Storing
14.1 Storing the Brushcutter
► Shut off the engine.
► If a metal cutting attachment is mounted: Fit
the appropriate transport guard.
► Ensure that the following conditions are met
when storing the brushcutter:
–The brushcutter is out of the reach of chil‐
dren.
–The brushcutter is clean and dry.
12 After Finishing Work English
0458-733-0121-C 15

► If you store the trimmer for more than 30 days:
► Remove the cutting attachment.
► Open the fuel tank cap.
► Drain the fuel tank.
► Close the fuel tank.
► If a manual fuel pump is fitted: Press the
manual fuel pump at least 5 times.
► Start the engine and run it at idling speed
until it stops.
15 Cleaning
15.1 Cleaning the Trimmer
► Shut off the engine.
► Allow trimmer to cool down.
► Clean the trimmer with a damp cloth or STIHL
resin solvent.
► Clean cooling air slots with a soft brush.
15.2 Cleaning the Deflector and Cut‐
ting Attachment
► Shut off the engine.
► Clean the deflector and cutting attachment
with a damp cloth or a soft brush.
16 Maintenance
16.1 Maintenance Intervals
The maintenance intervals are dependent on the
environmental and operating conditions. STIHL
recommends the following maintenance inter‐
vals:
After every 50 hours of operation
► Lubricate the gearbox.
After every 100 hours of operation
► Install a new spark plug.
Monthly:
► Have fuel tank cleaned by a STIHL servicing
dealer.
► Have pickup body in fuel tank cleaned by a
STIHL servicing dealer.
Every 12 months
► Have pickup body in fuel tank replaced by a
STIHL servicing dealer.
16.2 Lubricating the Gearbox
1
2
0000-GXX4771-A0
► Remove screw plug (2).
► If no grease is visible on the end of the screw
plug (2):
► Apply tube of "STIHL gear grease" (1) to the
filler hole.
► Squeeze 5 g of STIHL gear grease into the
gear housing.
► Insert and tighten the screw plug (2)
securely.
► Start the engine and run it for one minute at
full throttle.
The STIHL gear lubricant is evenly distrib‐
uted.
16.3 Adjusting the Throttle Cable
► Start the engine.
12
3
0000-GXX-4785-A0
► Press the throttle trigger (1) without pressing
the throttle trigger lockout (2).
► If the engine accelerates: Hold the throttle trig‐
ger (1) depressed and turn screw (3) counter‐
clockwise until there is no further audible drop
in engine speed.
The throttle cable had been over-tensioned.
► Press and hold the throttle trigger (1) without
depressing the throttle trigger lockout (2).
► Turn screw (3) clockwise until the engine
accelerates.
► Turn the screw (3) counterclockwise by 1.5
turns.
The engine runs at idle speed, and the throttle
cable adjustment is correct.
► Shut off the engine.
English 15 Cleaning
16 0458-733-0121-C

16.4 Sharpening and Balancing a
Metal Cutting Attachment
Correctly sharpening and balancing metal cutting
attachments requires a lot of practice.
STIHL recommends you have metal cutting
attachments resharpened and balanced by a
STIHL servicing dealer.
17 Repairing
17.1 Repairing the Trimmer and
Cutting Attachment
The trimmer and cutting attachment cannot be
repaired by the user.
► If the trimmer or cutting attachment is dam‐
aged: Do not use your trimmer or cutting
attachment and contact your STIHL servicing
dealer.
18 Troubleshooting
18.1 Troubleshooting Trimmer
Most malfunctions have the same causes.
► Perform the following operations:
► Clean the air filter.
► Clean or replace the spark plug.
► Carry out the standard setting.
► Adjust idle speed.
► Adjust carburetor for operation at high altitude.
► If the malfunction still exists: Take the action described in the following table.
Condition Cause Remedy
Engine does not
start.
Insufficient fuel in the
tank.
► Prepare fuel mix and refuel the trimmer.
Engine is flooded. ► Clear the combustion chamber.
Carburetor is too hot. ► Allow trimmer to cool down.
► Before starting the engine: Depress the manual fuel
pump bulb at least ten times.
Carburetor is iced up. ► Allow trimmer to warm up to +10°C.
Engine idles errati‐
cally.
Carburetor is iced up. ► Allow trimmer to warm up to +10°C.
Engine stops while
idling
Carburetor is iced up. ► Allow trimmer to warm up to +10°C.
18.2 Cleaning the Air Filter
► Shut off the engine.
321
0000-GXX-4732-A0
► Depress the locking tab (1) and remove the fil‐
ter cover (2).
► Clean the area around the air filter (3) with a
damp cloth or a soft brush.
► Take out the air filter (3).
► Tap the air filter (3).
► If the air filter (3) is damaged: Install a new air
filter (3).
► Wash the air filter (3) in warm, soapy water.
► Rinse the air filter (3) under running water.
► Allow the air filter (3) to dry in the air.
► Evenly spread 5 ml two-stroke engine oil in the
air filter (3).
17 Repairing English
0458-733-0121-C 17

3 54 2
0000-GXX-4733-A0
► Insert air filter (3).
► Position the filter cover (2) so that the locking
tabs (5) engage with the recesses (4).
► Close the filter cover (2).
The filter cover (2) engages in position with an
audible click.
18.3 Cleaning the Spark Plug
► Shut off the engine.
► Allow trimmer to cool down.
2
1
0000-GXX-4734-A0
► Pull off the spark plug boot (1).
► If the area around the spark plug (2) is soiled:
Clean the spark plug (2) with a cloth.
► Unscrew the spark plug (2).
► Clean the spark plug (2) with a cloth.
► If the spark plug (2) is corroded: Install a new
spark plug (2).
► Insert and tighten down the spark plug (2)
firmly.
► Press the spark plug boot (1) firmly home.
18.4 Adjusting standard setting
► Shut off the engine.
0000-GXX-2946-A0
HL
► Turn the high speed screw H counterclockwise
up to the limit stop.
► Turn the high speed screw H 1 1/2 turns coun‐
terclockwise.
► Turn the low speed screw L clockwise as far
as it will go.
► Turn the low speed screw L one turn counter‐
clockwise.
18.5 Adjusting Idle Speed
► Carry out the standard setting.
► Start the engine.
► Warm up the engine by opening and closing
the throttle for about 1 minute.
0000-GXX-4782-A0
Engine stops while idling
► Turn the idle speed screw (LA) clockwise until
the cutting attachment begins to rotate.
► Turn the idle speed screw (LA) one full turn
counterclockwise.
Erratic idling behavior or poor acceleration
► Turn the low speed screw (L) clockwise or
counterclockwise until the engine runs and
accelerates smoothly.
Cutting attachment rotates when engine is idling
► Turn the idle speed screw (LA) counterclock‐
wise until the cutting attachment stops rotat‐
ing.
► Turn the idle speed screw (LA) one full turn
counterclockwise.
18.6 Clearing the Combustion
Chamber
2
3
1
0000-GXX-4736-A0
► Pull off the spark plug boot (1).
► Unscrew the spark plug (2).
► Dry the spark plug (2).
English 18 Troubleshooting
18 0458-733-0121-C

WARNING
■ Unconfined sparks may occur if the starter grip
is pulled after the spark plug boot has been
removed. Sparks may cause a fire or an
explosion in an easily combustible or explo‐
sive environment. This can result in serious or
fatal injuries and damage to property.
►Move the slide control to position
before pulling the starter grip.
► Move the slide control to position .
► Pull the starter grip (3) several times and
guide it back slowly.
The combustion chamber is cleared.
► Insert and tighten down the spark plug (2)
firmly.
► Connect the spark plug boot (1) and press it
down firmly.
19 Specifications
19.1 STIHL FS 230 Trimmer
–Displacement: 40.2 cm³
–Engine power: 1.55 kW (2.1 hp) at 8500 rpm
–Idle speed: 2800 rpm
–Maximum output shaft speed: 8,900 rpm
–Approved spark plug: Bosch WSR 6 F from
STIHL
–Electrode gap of the spark plug: 0.5 mm
–Dry weight without cutting attachment and
deflector: 7.2 kg
–Length without cutting tool: 1824 mm
–Max. fuel tank capacity: 810 cm³ (0.81 l)
20 Combinations of Cutting Attachments, Deflectors and Carrying
Systems
20.1 Combinations of Cutting Attachments, Deflectors and Carrying Systems
Cutting attachment Deflector Carrying system
–Grass cutting blade 305-2
(Ø 305 mm)
–Universal deflector
without skirt
–Shoulder strap
–Full harness with quick-release system
21 Spare Parts and Accesso‐
ries
21.1 Spare parts and accessories
These symbols indicate original STIHL
spare parts and original STIHL acces‐
sories.
STIHL recommends the use of original STIHL
spare parts and accessories.
Despite ongoing market observation, STIHL is
unable to judge the reliability, safety and suitabil‐
ity of other manufacturers' spare parts and
accessories; accordingly, STIHL cannot warrant
for the use of those parts.
Original STIHL spare parts and original STIHL
accessories are available from STIHL dealers.
22 Disposal
22.1 Disposing of the Brushcutter
Contact the local authorities or your STIHL
dealer for information on disposal.
Improper disposal can be harmful to health and
pollute the environment.
► Take STIHL products including packaging to a
suitable collection point for recycling in accord‐
ance with local regulations.
► Do not dispose with domestic waste.
19 Specifications English
0458-733-0121-C 19

www.stihl.com *04587330121C*
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