FR 450, 480
Instruction Manual2 - 37
English
Contents
1 Guide to Using this Manual.........................2
2 Safety Precautions and Working Techni‐
ques............................................................ 2
3 Approved Combinations of Cutting Attach‐
ment, Deflector and Handle...................... 11
4 Approved Power Tool Attachments.......... 12
5 Assembling the Unit.................................. 12
6 Adjusting the Throttle Cable......................14
7 Mounting the Deflector..............................15
8 Mounting the Cutting Attachment..............16
9 Fuel........................................................... 19
10 Fueling...................................................... 20
11 Support frame........................................... 20
12 Starting / Stopping the Engine.................. 21
13 Transporting the Unit................................ 24
14 Operating Instructions...............................26
15 Cleaning the Air Filter............................... 26
16 Adjusting the Carburetor........................... 26
17 Winter Operation.......................................27
18 Spark Plug................................................ 28
19 Engine Running Behavior......................... 28
20 Lubricating the Gearbox............................29
21 Lubricating the Flexible Shaft....................29
22 Storing the Machine.................................. 29
23 Sharpening Metal Cutting Blades............. 30
24 Maintaining the Mowing Head...................30
25 Inspection and Maintenance by User........31
26 Maintenance and Care..............................32
27 Minimize Wear and Avoid Damage...........33
28 Main Parts.................................................34
29 Specifications............................................35
30 Maintenance and Repairs......................... 36
31 Disposal.................................................... 36
32 EC Declaration of Conformity................... 37
Dear Customer,
Thank you for choosing a quality engineered
STIHL product.
It has been built using modern production techni‐
ques and comprehensive quality assurance.
Every effort has been made to ensure your satis‐
faction and trouble-free use of the product.
Please contact your dealer or our sales company
if you have any queries concerning this product.
Your
Dr. Nikolas Stihl
1 Guide to Using this Manual
1.1 Pictograms
All the pictograms attached to the machine are
shown and explained in this manual.
1.2 Symbols in text
WARNING
Warning where there is a risk of an accident or
personal injury or serious damage to property.
NOTICE
Caution where there is a risk of damaging the
machine or its individual components.
1.3 Engineering improvements
STIHL's philosophy is to continually improve all
of its products. For this reason we may modify
the design, engineering and appearance of our
products periodically.
Therefore, some changes, modifications and
improvements may not be covered in this man‐
ual.
2 Safety Precautions and
Working Techniques
The very high speed of its cutting
attachment means that some special
safety precautions must be observed
to reduce the risk of personal injury
when operating this power tool.
It is important that you read and
understand the User Manual before
commissioning and keep it in a safe
place for future reference. Non-com‐
pliance with the User Manual may
cause serious or even fatal injury.
Observe all applicable local safety regulations,
e.g. by trade organizations, social insurance
institutions, labor safety authorities etc.
If you have never used a power tool before:
Have your dealer or other experienced user
show you how to operate your machine – or
Original Instruction Manual
0000006433_018_GB
Printed on chlorine-free paper
Printing inks contain vegetable oils, paper can be recycled.
© ANDREAS STIHL AG & Co. KG 2021
0458-271-0121-C. VA0.J21.
2 0458-271-0121-C
2 Safety Precautions and Working Techniques English
attend a special course to learn how to operate
it.
Minors are not allowed to work with the power
tool – except adolescents above 16 years of age
who are instructed under supervision.
Children, animals and onlookers must remain at
a safe distance.
When not using the machine, it must be laid
down in such a way that it does not endanger
anyone. Ensure that the machine cannot be
used without authorization.
The user is responsible for accidents or risks
involving third parties or their property.
Do not lend or rent your power tool without the
User Manual. Be sure that anyone using it under‐
stands the information contained in this manual.
The use of machines that emit noise may be limi‐
ted to certain hours of the day as specified by
national and/or regional or local regulations.
Anyone operating the machine must be well res‐
ted, in good physical health and in good mental
condition.
If you have any condition that might be aggrava‐
ted by strenuous work, check with your doctor
before operating a machine.
If you have a pacemaker: The ignition system of
your machine produces an electromagnetic field
of very low intensity. This field may interfere with
some pacemakers. STIHL recommends that per‐
sons with pacemakers consult their physician
and the pacemaker manufacturer to reduce any
health risk.
Anyone who has consumed alcohol or drugs or
medicines affecting their ability to react must not
operate a power tool.
Depending on the cutting attachment fitted, use
your power tool only for cutting grass, wild
growth, shrubs, scrub, bushes, small diameter
trees and similar materials.
The machine must not be used for any other pur‐
poses – risk of accidents!
Only use cutting attachments and accessories
that are explicitly approved for this power tool
model by STIHL or are technically identical. If
you have any questions in this respect, consult
your dealer. Use only high-quality parts and
accessories. in order to avoid the risk of acci‐
dents and damage to the machine.
STIHL recommends the use of genuine STIHL
tools and accessories. They are specifically
designed to match the product and meet your
performance requirements.
The guard provided with your machine may not
protect the operator from all foreign objects
(gravel, glass, wire etc.) ejected by the revolving
cutting attachment. Ejected objects may also ric‐
ochet and strike the operator.
Never attempt to modify your power tool in any
way since this may increase the risk of personal
injury. STIHL excludes all liability for personal
injury and damage to property caused while
using unauthorized attachments.
Do not use a high-pressure washer to clean the
power tool. The solid jet of water may damage
parts of the unit.
2.1 Clothing and equipment
Wear proper protective clothing and equipment.
Clothing must be sturdy but allow
complete freedom of movement.
Wear close-fitting clothes such as a
boiler suit, not a loose jacket.
Do not wear clothing which could become trap‐
ped in wood, brush or moving parts of the
machine. Do not wear a scarf, necktie or jewelry.
Tie up and confine long hair above your should‐
ers so that it cannot be pulled into the machine.
Wear safety boots with steel toe caps
and non-slip soles.
Sturdy shoes with non-slip shoes are permissible
only when using mowing heads.
WARNING
To reduce the risk of eye injuries,
wear close-fitting safety glasses in
accordance with European Standard
EN 166. Make sure the safety
glasses are a snug fit.
Wear face protection and make sure it is a good
fit. Face protection alone is not sufficient to pro‐
tect the eyes.
Wear a safety hard hat for thinning operations,
when working in high scrub and where there is a
danger of head injuries from falling objects.
Wear "personal" sound protection, e.g. ear
defenders.
0458-271-0121-C 3
271BA001 KN
English 2 Safety Precautions and Working Techniques
Wear sturdy protective gloves made
of a resistant material (e.g. leather).
STIHL can supply a comprehensive range of per‐
sonal protective equipment.
2.2 Transporting the machine
splashed with fuel. If that happens, change your
clothes at once.
After refueling, close the fuel cap as
tightly as possible.
This helps reduce the risk of unit vibrations caus‐
ing an incorrectly tightened fuel cap to loosen or
come off and spill quantities of fuel.
Check for leaks. Do not start the engine if there
is a fuel leak – serious or fatal burns could result!
2.4 Before starting
Check that your power tool is properly assem‐
bled and in good condition – refer to appropriate
chapters in the User Manual.
Check the fuel system for leaks, especially the
–
visible parts, e. g., fuel cap, hose connections,
Turn off the engine before transporting the unit
over distances of more than about 50 meters.
Carry the unit in the normal working position:
Power tool on your back, left hand on the loop
handle and the right hand on the control handle –
even if you are left-handed – cutting attachment
lowered close to ground.
To reduce the risk of cut injuries, fit transport
guard on the cutting attachment, even when car‐
rying the tool for short distances – see also
"Transporting the Unit".
Avoid touching hot parts of the
machine and gearbox – risk of burns!
By vehicle: When transporting in a vehicle, prop‐
erly secure your machine to prevent turnover,
damage and fuel spillage.
2.3 Refueling
Gasoline is highly flammable – keep
away from fire or flame – do not spill
any fuel – no smoking.
Always shut off the engine before refueling.
Do not fuel a hot engine – fuel may spill and
cause a fire.
Open the fuel cap carefully to allow any pressure
build-up in the tank to release slowly and to pre‐
vent fuel spraying out.
Only refuel the machine in a well ventilated
place. If fuel has been spilled, immediately clean
the machine – do not allow your clothes to be
manual fuel pump (only in machines with a
manual fuel pump). In case of leakage and
damage, do not start the engine – risk of fire!
Have the machine serviced by a dealer before
using it
Use only an approved combination of cutting
–
attachment, deflector and handle. All parts
must be assembled properly and securely
Slide control / stop switch must move easily to
–
STOP or 0
Throttle trigger lockout (if installed) and throttle
–
trigger must move easily – the throttle trigger
must return to the idle position automatically
Check that the spark plug boot is secure – a
–
loose boot may cause sparking that could
ignite combustible fumes and cause a fire!
Cutting attachment or interchangeable attach‐
–
ment: correctly fitted, secure and in perfect
condition
Safety devices (e. g., deflector for cutting
–
attachments, rider plate) for damage and/or
wear. Always replace damaged parts. Do not
use the machine with a damaged deflector or
worn rider plate (if the writing and arrows are
no longer discernible)
Never attempt to modify the controls or safety
–
devices.
Keep the handles dry and clean – free from oil
–
and dirt – this is important for safe control of
the machine
Adjust straps and loop handle to suit your
–
height and reach – see chapter on "Fitting the
Backpack"
Check the condition of the carrying system
–
and the straps - replace if damaged or worn
4 0458-271-0121-C
271BA003 KN
271BA002 KN
15m (50ft)
2 Safety Precautions and Working Techniques
To reduce the risk of personal injury, do not
operate your power tool if it is damaged or not
properly assembled!
For emergencies: Practice quickly opening the
fastener on the waist belt, loosening the shoulder
straps and setting down the unit. To avoid dam‐
age, do not throw the unit to the ground when
practicing.
2.5 Starting the engine
Start the engine at least 3 meters from the fuel‐
ing spot, outdoors only.
Place the powerhead on firm ground in an open
area. Make sure you have good balance and
secure footing. Hold the powerhead securely.
The cutting attachment must be clear of the
ground and all other obstructions because it may
begin to run when the engine starts. Observe
information in chapter on "Starting / Stopping the
Engine".
This is a one-person machine – ensure that there
is no-one within 15 meters of the machine, not
even when starting the power tool! Risk of injury
due to ejected objects!
Avoid contact with the cutting attach‐
ment – risk of injury!
Do not drop-start the power tool – start the
engine as described in the User Manual.
The cutting attachment runs on for a
short while after releasing the throttle
trigger – coasting effect!
Check engine idling: The cutting attachment
must remain at a standstill when the engine idles
– throttle trigger released.
To reduce the risk of fire, keep hot exhaust
gases and hot muffler away from easily combus‐
tible materials (e.g. wood chips, bark, dry grass,
fuel).
0458-271-0121-C 5
2.6 Holding and guiding the machine
Make sure you always have a firm and secure
footing.
Carry the powerhead on your back. To reduce
the risk of injury, put the powerhead on your
back only after starting and making sure the cut‐
ting attachment is not rotating.
Always hold the drive tube firmly with both hands
on the handles – right hand on control handle
and left hand on loop handle – and always keep
the drive tube on the right side of your body –
left-handers, too.
2.7 While working
In the event of impending danger or in an emer‐
gency, switch off the engine immediately - move
the slide control/stop switch to STOP or 0.
Do not allow any other persons within 15 meters
of your own position. Risk of injury! due to ejec‐
ted objectsThis distance must also be main‐
tained in relation to objects (vehicles, window
panes) – risk of property damage!
Check that the engine is properly idling so that
the cutting tool will not continue rotating after you
release the throttle trigger. Check and correct the
idle speed setting at regular intervals. If the cut‐
ting attachment still rotates at idle speed, have
your dealer make proper adjustments or repairs.
STIHL recommends you have this work done by
a STIHL servicing dealer.
Take special care in slippery conditions – damp,
snow, ice, on slopes or uneven ground.
English
English 2 Safety Precautions and Working Techniques
Watch out for obstacles: tree stumps, roots – risk
of tripping or stumbling!
Make sure you always have a firm and secure
footing.
Never work on a ladder or in a tree
Never operate your power tool with one hand.
Be particularly alert and cautious when wearing
hearing protection because your ability to hear
warnings (shouts, alarms, etc.) is restricted.
Take breaks when you start getting tired or feel‐
ing fatigue – risk of accidents!
Work calmly and carefully – in daylight conditions
and only when visibility is good. Proceed with
caution, do not put others in danger.
Your power tool produces toxic
exhaust fumes as soon as the engine
starts running. These gases may be
odorless and invisible and may con‐
tain unburned hydrocarbons and ben‐
zene. Never run the engine indoors or
in poorly ventilated locations, even if
your model is equipped with a cata‐
lytic converter.
To reduce the risk of serious or fatal injury from
breathing toxic fumes, ensure proper ventilation
when working in trenches, hollows or other con‐
fined locations. This reduces the risk of serious
or fatal injury from breathing toxic fumes.
Stop work immediately if you start suffering from
nausea, headaches, impaired vision (e.g. your
field of vision gets smaller), impaired hearing,
dizziness, or impaired concentration – these
symptoms may possibly be the result of too-high
exhaust gas concentration – Risk of accidents!
Operate your power tool so that it produces a
minimum of noise and emissions – do not run the
engine unnecessarily, accelerate the engine only
when working.
To reduce the risk of fire, do not smoke while
operating or standing near your power tool. Com‐
bustible fuel vapor may escape from the fuel sys‐
tem.
Dust, fumes and smoke produced while working
may be hazardous to health. Wear respiratory
protection in case of heavy dust or smoke emis‐
sion.
If your power tool is subjected to unusually high
loads for which it was not designed (e.g. heavy
impact or a fall), always check that it is in good
condition before continuing work – see also
"Before Starting".
Check in particular that the fuel system has no
leaks and the safety equipment is fully operative.
Never use a power tool that is no longer safe to
operate. In case of doubt, contact a dealer.
Do not operate your power tool in the starting
throttle position – engine speed cannot be con‐
trolled in this position.
To reduce the risk of injuryfrom
thrown objects, never operate the unit
without the proper deflector for the
type of cutting attachment being
used.
Check the work site – rocks, metal
objects etc. may be caught up and
ejected – risk of injury! Such objects
can also damage the cutting attach‐
ment and other property (e.g. parked
vehicles, windows).
Be particularly careful when working on difficult,
densely grown terrain.
When mowing in high shrubbery, under shrub‐
bery and hedges: Hold the cutting tool at a work‐
ing height of at least 15 cm – avoid risks to ani‐
mals.
Before you leave the machine: Shut the engine
off.
Examine the cutting attachment periodically at
short intervals and as soon as you note any
noticeable changes:
Stop the engine, hold the machine securely,
–
allow the cutting attachment to come to a stop
Check condition and secure fitting; watch out
–
for cracks
Ensure that the cutting blades are sharp
–
Replace damaged or dull cutting attachments
–
immediately, even if they have only superficial
cracks
Clean grass and plant residue off the cutting
attachment mounting at regular intervals –
remove any accumulated material from the cut‐
ting attachment and deflector.
To reduce the risk of injury, shut off the engine
before replacing the cutting attachment.
The gearbox gets hot during opera‐
tion. Never touch the gearbox – risk
of burns!
2.8 Using mowing heads
Enhance the cutting attachment deflector with
the attached parts specified in the User Manual.
6 0458-271-0121-C
2 Safety Precautions and Working Techniques English
Only use the deflector with properly mounted
blade that ensures the mowing line is restricted
to the permissible length.
Always switch off the engine to adjust the mow‐
ing line for manually adjustable mowing heads –
risk of injury!
Misuse with mowing lines that are too long
reduces the working speed of the engine. The
constant slipping of the clutch causes overheat‐
ing and damage to important components (e. g.
clutch, plastic housing parts) – e. g. due to the
cutting attachment rotating during idling – risk of
injury!
2.9 When using metal cutting attachments
STIHL recommends the use of original STIHL
metal cutting attachments. These have been
optimized for the machine and the user’s require‐
ments.
Metal cutting attachments rotate very fast, gener‐
ating forces acting on the attachments and on
the cuttings.
Metal cutting attachments must be sharpened in
regular intervals in accordance with the instruc‐
tions.
Unevenly sharpened metal cutting attachments
generate an imbalance which may cause
extreme loads on the machine – risk of break‐
age!
Dull or improperly sharpened cutting edges can
put a higher load on the cutting attachment and
increase the risk of injuryfrom cracked or broken
parts.
After each contact of the metal cutting attach‐
ment with hard objects (e.g. stones, rocks, metal
parts), check it for damage (e.g. tears and defor‐
mation). To reduce the risk of injury, remove
burrs and other visible accumulated material
because they may become detached and be
ejected at high speed during operation.
If a rotating metal cutting attachment touches a
rock or another hard object, sparks may be gen‐
erated which may possibly ignite combustible
materials. Also dried-out plants and brushwood
are combustible, above all in hot and dry
weather. If there is a risk of fire, do not use metal
cutting attachments in the vicinity of combustible
materials, dried-out plants or brushwood. It is
mandatory that you ask the responsible forestry
office about current fire hazards.
Do not continue using or attempt to repair dam‐
aged or cracked cutting attachments by means
of welding, straightening or modifying the shape
(unbalanced).
Particles or pieces may come off and hit the
operator or a bystander at a high speed – risk of
most severe injuries!
To reduce the above-named risks involved in
operating a metal cutting attachment, ensure that
the diameter of your metal cutting attachment is
not too big. Also, the attachment must not be too
heavy. It must be made of high-quality materials
and have a suitable geometry (shape, thickness).
To reduce the risk of injury, a metal cutting
attachment not manufactured by STIHL must not
be heavier, thicker, have a different shape or a
diameter larger than the largest metal cutting
attachment approved by STIHL for this power
tool model.
2.10 Vibrations
Prolonged use of the power tool may result in
vibration-induced circulation problems in the
hands (whitefinger disease).
No general recommendation can be given for the
length of usage because it depends on several
factors.
The period of usage is prolonged by:
Hand protection (wearing warm gloves)
–
Work breaks
–
The period of usage is shortened by:
Any personal tendency to suffer from poor cir‐
–
culation (symptoms: frequently cold fingers,
tingling sensations).
Low outside temperatures.
–
The force with which the handles are held (a
–
tight grip restricts circulation).
Continual and regular users should monitor
closely the condition of their hands and fingers. If
any of the above symptoms appear (e.g. tingling
sensation in fingers), seek medical advice.
2.11 Maintenance and Repairs
Service the machine regularly. Do not attempt
any maintenance or repair work not described in
the instruction manual. Have all other work per‐
formed by a servicing dealer.
STIHL recommends that you have servicing and
repair work carried out exclusively by an author‐
ized STIHL servicing dealer. STIHL dealers are
regularly given the opportunity to attend training
0458-271-0121-C 7
002BA331 KN
English 2 Safety Precautions and Working Techniques
courses and are supplied with the necessary
technical information.
Only use high-quality replacement parts in order
to avoid the risk of accidents and damage to the
machine. If you have any questions in this
respect, consult a servicing dealer.
STIHL recommends the use of genuine STIHL
replacement parts. They are specifically
designed to match your model and meet your
performance requirements.
To reduce the risk of injury, always shut off the
engine before carrying out any maintenance or
repairs or cleaning the machine. – Exception:
Carburetor and idle speed adjustments.
Do not turn the engine over on the starter with
the spark plug boot or spark plug removed
unless the slide control / stop switch is on STOP
or 0 since there is otherwise a risk of fire from
uncontained sparking.
To reduce the risk of fire, do not service or store
your machine near open flames.
Check the fuel filler cap for leaks at regular inter‐
vals.
Use only a spark plug of the type approved by
STIHL and make sure it is in good condition –
see "Specifications".
Inspect the ignition lead (insulation in good con‐
dition, secure connection).
Check the condition of the muffler.
To reduce the risk of fire and damage to hearing,
do not operate your machine if the muffler is
damaged or missing.
Do not touch a hot muffler since burn injury will
result.
Vibration behavior is influenced by the condition
of the AV elements – check the AV elements at
regular intervals.
2.13 Mowing Head with Nylon Line
Deflector may be used with grass cut‐
ting blades.
Deflector must not be used with mow‐
ing heads.
Do not use deflector with brush kni‐
ves, shredder blades or circular saw
blades.
Do not use deflector with brush kni‐
ves, shredder blades, grass cutting
blades or circular saw blades.
Deflector may be used with mowing
heads. Not approved for use with
brush knives, shredder blades or cir‐
cular saw blades.
Deflector may be used with mowing
heads – do not use metal cutting
attachments.
2.12 Symbols on Deflectors
An arrow on the deflector shows the correct
direction of rotation of the cutting attachments.
Some of the following symbols are applied to the
outside of the deflector to indicate the approved
combination of cutting attachment and deflector.
Deflector may be used with mowing
heads.
Nylon line achieves a soft cut for edging and
trimming around trees, fence posts, etc. – less
risk of damaging tree bark.
The mowing head comes with an instruction leaf‐
let. Refill the mowing head with nylon line as
described in the instruction leaflet.
8 0458-271-0121-C
002BA049 KN
002BA135 KN
002BA222 KN
2 Safety Precautions and Working Techniques English
right or to the rear – opposite to the
WARNING
To reduce the risk of serious injury, never use
wire or metal-reinforced line in place of the nylon
line.
attachment's direction of rotation.
2.14 STIHL Polycut Mowing Head with Polymer Blades
For mowing unobstructed edges of meadows
(without posts, fences, trees or similar obsta‐
cles).
Check the wear limit marks!
The risk of kickout is greatest when the black
area of the rotating cutting attachment comes
into contact with a solid object.
2.16 Grass Cutting Blade
If one of the wear limit marks on the PolyCut
mowing head is worn through (arrow): Do not
continue using the mowing head. Install a new
one. There is otherwise a risk of injury from
thrown parts of the head.
It is important to follow the maintenance instruc‐
tions for the PolyCut mowing head.
The PolyCut can also be equipped with mowing
line in place of the polymer blades.
The mowing head comes with instruction leaflets.
Equip the mowing head with polymers blades or
nylon line as described in the instruction leaflets.
WARNING
Never use wire in place of the nylon mowing line
– risk of injury.
2.15 Risk of Kickout (Blade Thrust) with Metal Cutting Attachments
WARNING
When using metal cutting attach‐
ments there is a risk of kickout when
the rotating blade comes into contact
with a solid object such as a tree
trunk, branch, tree stump, rock or
similar. The machine is thrown to the
0458-271-0121-C 9
Use for grass and weeds only – sweep the
brushcutter in an arc like a scythe.
WARNING
Improper use may damage the grass cutting
blade – risk of injury from thrown parts.
Resharpen the grass cutting blade according to
instructions when it has dulled noticeably.
002BA355 KN
002BA509 KN
English 2 Safety Precautions and Working Techniques
2.17 Brush Knife
For cutting matted grass, wild growth and scrub
and thinning young stands with a stem diameter
of no more than 2 cm – do not cut thicker stems
– risk of accidents.
To cut wild growth and scrub, lower the brush
knife down onto the growth to achieve a shred‐
ding effect – always keep the cutting attachment
below hip level during this process.
Exercise extreme caution when using this
method of cutting. The higher the cutting attach‐
ment is off the ground, the greater the risk of
injury from cuttings being thrown sideways.
Warning! Improper use of a brush knife may
cause it to crack, chip or shatter – risk of injury
from thrown parts.
To reduce the risk of injury it is essential to take
the following precautions:
Avoid contact with stones, rocks, pieces of
–
metal and other solid foreign objects.
Never cut wood or shrubs with a stem diame‐
Use the brushcutter like a scythe (sweep it to the
right and left) at ground level when cutting grass
and thinning young stands.
–
ter of more than 2 cm – use a circular saw
blade for such work.
Inspect the brush knife at regular short inter‐
–
vals for signs of damage. Do not continue
working with a damaged brush knife.
Resharpen the brush knife regularly and
–
whenever it has dulled noticeably, and have it
balanced if necessary (STIHL recommends a
STIHL servicing dealer).
10 0458-271-0121-C
8
1
3
6
2
5
9
10
12
13
14
16
15
17
18
19
20
19
20
0000-GXX-0367-A1
4
7
11
3 Approved Combinations of Cutting Attachment, Deflector and Handle English
3 Approved Combinations of Cutting Attachment, Deflector and
Handle
Cutting attachment Deflector Handle
3.1 Permissible combinations
Choose the correct combination from the table
depending on the cutting tool!
WARNING
For safety reasons only the cutting attachments,
deflectors and handle versions within one line of
the table may be combined with one another. No
other combinations are permitted because of the
risk of accidents.
3.2 Cutting attachments
3.2.1 Mowing heads
1 STIHL SuperCut 20‑2
2 STIHL AutoCut 25‑2
3 STIHL AutoCut C 26‑2
4 STIHL AutoCut 30‑2
5 STIHL AutoCut 36‑2
6 STIHL TrimCut 31‑2
7 STIHL DuroCut 20‑2
3.2.2 Metal cutting tools
8 Grass cutting blade 230‑2
0458-271-0121-C 11
(230 mm dia.)
9 Grass cutting blade 230‑4
(230 mm dia.)
10 Grass cutting blade 230‑8
(230 mm dia.)
11 Grass cutting blade 250‑32
(250 mm dia.)
12 Grass cutting blade 250‑40 Special
(250 mm dia.)
13 Brush knife 250‑3
(250 mm dia.)
WARNING
Grass cutting blades and brush knives made of
other, non-metal materials must not be used.
3.3 Deflectors
14 Deflector for mowing heads
15 Deflector with
16 Skirt and blade for mowing heads
17 Deflector without skirt and blade for metal
mowing heads
228BA032 KN
BF
271BA041 KN
1
3
5
2
4
2
266BA010 KN
1
1
3
271BA035 KN
English 4 Approved Power Tool Attachments
3.4 Handle
18 Loop handle
19 Loop handle with
20 Barrier bar
► Secure the support frame (5) to the power‐
head with the screw and washer (torque down
to 20 Nm/177 lbf. in).
5.2 Installing the Flexible Shaft
4 Approved Power Tool
Attachments
The following STIHL attachment may be moun‐
ted to the basic power tool:
Interchangeable
Attachment
BF Pick tines
Application
5 Assembling the Unit
5.1 Mounting the Support Frame
► Loosen and remove the M10x40 screw (1)
with lock washer (2) and plain washer (3) from
the powerhead (4).
12 0458-271-0121-C
► Remove the protective cap from one end of
the shaft.
► Push the end of the flexible shaft (1) into the
sleeve (2) until it engages – turn the shaft back
and forth at the same time.
► Remove the protective cap from the other end
of the shaft.
► Push the flexible shaft into the powerhead
coupling (3) until it engages – turn the shaft
back and forth at the same time.
► Keep the protective caps in a safe place.
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