STIHL FS 561 C-M
Instruction Manual
Notice d’emploi
G Instruction Manual
1 - 50
F Notice d’emploi
51 - 106
Contents
English
Guide to Using this Manual 2
Safety Precautions and Working
Techniques 3
Approved Combinations of Cutting
Attachment, Deflector, Limit Stop
and Harness 13
Mounting the Bike Handle 15
Adjusting the Throttle Cable 18
Mounting the Deflector 19
Original Instruction ManualPrinted on chlorine-free paper
Mounting the Cutting Attachment 21
Fuel 27
Fueling 28
Fitting the Full Harness 28
Balancing the Machine 29
Starting / Stopping the Engine 30
Transporting the Unit 32
Operating Instructions 34
Air filter 34
Engine Management 35
M-Tronic 35
Winter Operation 36
Spark Plug 38
Printing inks contain vegetable oils, paper can be recycled.
Engine Running Behavior 39
Lubricating the Gearbox 39
Storing the Machine 39
Sharpening Metal Cutting Blades 40
Maintaining the Mowing Head 40
Inspection and Maintenance by
User 41
Inspections and Maintenance by
Dealer 42
Maintenance and Care 43
Main Parts 45
Specifications 47
Maintenance and Repairs 48
Disposal 48
STIHL Limited Emission Control
Warranty Statement 49
Allow only persons who fully understand
this manual to operate your clearing
saw.
To receive maximum performance and
satisfaction from your STIHL clearing
saw, it is important that you read,
understand and follow the safety
precautions and the operating and
maintenance instructions in chapter
"Safety Precautions and Working
Techniques" before using your clearing
saw. For further information you can go
to www.stihlusa.com.
Contact your STIHL dealer or the STIHL
distributor for your area if you do not
understand any of the instructions in this
manual.
WARNING
Because a clearing saw 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 or limit stop, handle and
harness for the type of cutting
attachment being used. Always wear
proper eye protection.
© ANDREAS STIHL AG & Co. KG, 2022
0458-856-8221-A. VA4.B22.
0000009340_004_GB
FS 561 C-M
This instruction manual is protected by copyright. All rights reserved, especially the rights to reproduce, translate and process
with electronic systems.
1
English
Guide to Using this Manual
Pictograms
The meanings of the pictograms
attached to or embossed on the
machine are explained in this manual.
Depending on the model concerned, the
following pictograms may be on your
machine.
Fuel tank for gasoline
and engine oil mixture
Press to operate decom
pression valve
Manual fuel pump
Press to operate manual
fuel pump
Filler hole for gear
lubricant
Air intake summer mode
Air intake winter mode
Handle heating
Symbols in Text
Many operating and safety instructions
are supported by illustrations.
The individual steps or procedures
described in the manual may be shown
in different ways:
N A bullet indicates a step or
procedure.
A description of a step or procedure that
refers directly to an illustration may
contain item numbers that appear in the
illustration. For example:
N Remove the screw (1)
N Pull the spark arresting screen (2)
-
upwards out of the muffler
In addition to the operating instructions,
this manual may contain paragraphs
that require your special attention. Such
paragraphs are indicated with the
symbols and signal words described
below:
DANGER
Indicates a hazardous situation that, if
not avoided, will result in death or
serious injury.
WARNING
Indicates a hazardous situation that, if
not avoided, could result in death or
serious injury.
NOTICE
Indicates a risk of property damage,
including damage to the machine or its
individual components.
Engineering Improvements
STIHL’s philosophy is to continually
improve all of its products. As a result,
engineering changes and improvements
are made from time to time. Therefore,
some changes, modifications and
improvements may not be covered in
this manual. If the operating
characteristics or the appearance of
your machine differs from those
described in this manual, please contact
your STIHL dealer or the STIHL
distributor for your area for assistance.
2
FS 561 C-M
English
Safety Precautions and
Working Techniques
Because the machine is a
high-speed fast-cutting
power tool, special safety
precautions must be
observed to reduce the
risk of personal injury.
It is important you read
and understand the User
Manual before commis
sioning and keep it in a
safe place for future ref
erence. Non-compliance
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 attend a
special course to learn how to operate it.
Minors should never be allowed to use
the machine – except for apprentices
over the age of 16 when working under
supervision.
Children, animals and bystanders must
remain at a 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 understands the
information contained in this manual.
The use of machines that emit noise
may be limited to certain hours of the
day as specified by national and/or
regional or local regulations.
Anyone operating the machine must be
well rested, in good physical health and
in good mental condition.
If you have any condition that might be
aggravated 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 persons 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 purposes – 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
accidents and damage to the machine.
STIHL recommends the use of original
STIHL tools and accessories. They are
specifically designed to match the
product and meet your performance
requirements.
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.
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
ricochet and strike the operator.
Clothing and equipment
Wear proper protective clothing and
equipment.
Clothing must be sturdy
but allow complete free
dom of movement. Wear
close-fitting clothes such
as a boiler suit, not a
loose jacket.
Do not wear clothing which could
become trapped in wood, brush or
moving parts of the machine. Do not
-
FS 561 C-M
3
English
002BA479 KN
wear a scarf, necktie or jewelry. Tie up
and confine long hair above your
shoulders.
Wear safety boots with
steel toe caps and nonslip soles.
Sturdy shoes with non-slip shoes are
permissible only when using mowing
heads.
WARNING
To reduce the risk of eye
injuries, wear close-fit
-
ting safety glasses in
accordance with Euro
-
pean 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 protect the eyes.
Wear "personal" sound protection, e.g.
ear defenders.
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 sturdy protective
gloves made of a resist
-
ant material (e. g.
leather).
Transporting the machine
Always stop the engine.
Carry the machine hanging on the
harness or by the shaft so that it is
balanced. Fit transport guard on metal
cutting attachments to avoid the risk of
injury from blade contact
Avoid touching hot parts
of the machine and gear
box – risk of burns!
By vehicle: When transporting in a
vehicle, properly secure your machine to
prevent turnover, damage and fuel
spillage.
Refueling
Gasoline is highly flam
-
mable – keep away from
fire or flame – do not spill
any fuel – no smoking.
Open the fuel cap carefully to allow any
pressure build-up in the tank to release
slowly and avoid fuel spillage.
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 splashed with
fuel. If that happens, change your
clothes at once.
After fueling, tighten
down the screw-type fuel
cap as securely as
possible.
This helps reduce the risk of engine
vibrations causing an incorrectly
tightened fuel cap to loosen or come off
and spill fuel.
Check for leaks. Do not start the engine
-
if there is a fuel leak – serious or fatal
burns could result!
STIHL can supply a comprehensive
range of personal protective equipment.
4
Always shut off the engine before
refueling.
Do not fuel a hot engine – fuel may spill
and cause a fire.
FS 561 C-M
English
002BA480 KN
Before starting
Check that your power tool is properly
assembled 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, 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,
handle and harness. All parts must
be assembled properly and
securely
– The stop switch must be easy to
push
– Check the choke lever, throttle
trigger and throttle trigger lockout
for smooth action - throttle trigger
must return automatically to idle
position. The choke lever must
spring back from the } position to
the run position F when the throttle
trigger lockout and throttle trigger
are squeezed.
– 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 attachment:
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 the harness and handle(s) to
suit your height and reach Note the
information in the chapters "Fitting
the Harness" and "Balancing the
Machine".
To reduce the risk of personal injury, do
not operate your power tool if it is
damaged or not properly assembled!
To prepare for emergencies when using
a harness: Practice setting down the
machine quickly. To avoid damage, do
not throw the unit to the ground when
practicing.
Starting the engine
Start the engine at least 3 meters from
the fueling spot, outdoors only.
Place the unit on firm ground in an open
area. Make sure you have good balance
and secure footing. Hold the unit
securely. The cutting attachment must
be clear of the ground and all other
obstructions because it may begin to run
when the engine starts.
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 attachment – 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 trig
ger – coasting effect!
Keep easily combustible materials
(e. g., wood chips, bark, dry grass, fuel)
away from hot exhaust gases and hot
muffler surfaces – risk of fire!
Holding and guiding the machine
Always hold the unit firmly with both
hands on the handles.
Make sure you always have good
balance and secure footing.
Right hand on control handle, left hand
on grip on handlebar.
-
FS 561 C-M
5
English
15m (50ft)
While working
Make sure you always have good
balance and secure footing.
In the event of imminent danger or in an
emergency, push the stop switch to stop
the engine.
Within a wide area around the
workplace, there is a risk of accident by
ejected objects, therefore ensure that
there is no-one within a 15 m radius of
the machine. This distance must also be
maintained in relation to objects
(vehicles, window panes) – risk of
property damage! Even at a distance
over 15 m, danger cannot be ruled out.
Check that the engine is properly idling
so that the cutting tool will not continue
rotating after you release the throttle
trigger. If the cutting 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.
Watch out for obstacles: tree stumps,
roots – risk of tripping or stumbling!
Only work while standing on the ground,
never on a ladder, work platform or other
unstable surface.
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 feeling 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.
As soon as the engine is
running, the power
machine generates toxic
exhaust gas. These
gases may be odorless
and invisible and may
contain unburned hydro
carbons and benzene.
Never run the engine
indoors or in poorly venti
lated locations, even if
your model is equipped
with a catalytic converter.
To reduce the risk of serious or fatal
injury from breathing toxic fumes,
ensure proper ventilation when working
in trenches, hollows or other confined
locations.
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. Combustible fuel vapor may
escape from the fuel system.
Dust, fumes and smoke produced while
working may be hazardous to your
health. Wear respiratory protection in
case of heavy dust or smoke emission.
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.
-
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 – possibly over a
distance of 15 m – risk of
injury! – They can also
damage the cutting
attachment and other
property (e. g. parking
vehicles, windows).
Be particularly careful when working on
difficult, densely grown terrain.
6
FS 561 C-M
English
When mowing in high shrubbery, under
shrubbery and hedges: Hold the cutting
tool at a working height of at least 15 cm
– avoid risks to animals.
Always shut off the engine before
leaving the unit unattended.
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 blunt cutting
attachments immediately, even in
the event of minor hairline cracks
Clean grass and plant residue off the
cutting attachment mounting at regular
intervals – remove any build up of
material from the cutting attachment and
deflector.
To reduce the risk of injury, shut off the
engine before replacing the cutting
attachment.
The gearbox gets hot
during operation. Never
touch the gearbox – risk
of burns!
Do not continue using or attempt to
repair damaged or cracked cutting
attachments by welding, straightening or
modifying the shape (out of balance).
Particles or pieces may come off and hit
the operator or a bystander at a high
speed – risk of most severe injuries!
If a rotating cutting attachment touches a
rock or another hard object, sparks may
be generated 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 cutting
attachments in the vicinity of
combustible materials, dried-out plants
or brushwood. It is mandatory that you
ask the responsible forestry office about
the current fire hazard.
Using mowing heads
Use only the deflector with properly
mounted line limiting blade to ensure the
mowing lines are automatically trimmed
to the approved length.
Always switch off the engine to adjust
the mowing 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 overheating and damage
to important components (e. g. clutch,
plastic housing parts) – e. g. due to the
cutting attachment rotating during idling
– risk of injury!
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 requirements.
Metal cutting attachments rotate very
fast, generating forces acting on the
attachments and on the cuttings.
Metal cutting attachments must be
sharpened in regular intervals in
accordance with the instructions.
Unevenly sharpened metal cutting
attachments generate an imbalance
which may cause extreme loads on the
machine – risk of breakage!
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
attachment with hard objects (e.g.
stones, rocks, metal parts), check it for
damage (e.g. tears and deformation).
Burrs and other visible material
accumulations must be removed since
they may come loose at any time while
the machine is running and then be
ejected – risk of injury!
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 highquality materials and have a suitable
geometry (shape, thickness).
A metal cutting attachment not made by
STIHL must not have a different weight,
thickness, shape and a larger diameter
than the largest STIHL metal cutting
attachment approved for this metal
cutting attachment – risk of injury!
FS 561 C-M
7
English
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 circulation (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.
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 performed by a
servicing dealer.
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer. STIHL dealers are
regularly given the opportunity to attend
training 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 original
STIHL replacement parts. They are
specifically designed to match your
model and meet your performance
requirements.
To reduce the risk of injury from
unintentional engine startup, always
shut off the engine and disconnect the
spark plug boot before performing any
repairs, maintenance or cleaning work. –
Exception: Carburetor and idle speed
adjustments.
Do not turn the engine over on the
starter with the spark plug boot or spark
plug removed 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 intervals.
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 condition, 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.
Maintenance, replacement, or repair of
the emission control devices and
systems may be performed by any
nonroad engine repair establishment or
individual. However, if you make a
warranty claim for a component which
has not been serviced or maintained
properly, STIHL may deny coverage.
For any maintenance please refer to the
maintenance chart and to the warranty
statement near the end of the instruction
manual.
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.
8
FS 561 C-M
English
002BA397 KN
000BA015 KN
Deflector may be used
with grass cutting blades.
Deflector may be used
with brush knives.
Deflector may be used
with shredder blades.
Deflector must not be
used with mowing heads.
Deflector must not be
used with grass cutting
blades.
Deflector must not be
used with brush knives.
Deflector must not be
used with shredder
blades.
Deflector must not be
used with circular saw
blades.
Harness
The harness is included with the
machine or available as a special
accessory.
N Use the harness.
N With the engine running, attach the
machine to the harness.
All cutting attachments must be used in
combination with a full harness with a
quick-release system.
Mowing Head with Nylon Line
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 leaflet. Refill the mowing
head with nylon line as described in the
instruction leaflet.
WARNING
To reduce the risk of serious injury,
never use wire or metal-reinforced line in
place of the nylon line.
STIHL DuroCut
FS 561 C-M
Check the wear limit marks!
9
English
681BA209 KN
002BA396 KN
002BA135 KN
If one of the wear limit marks imbedded
in the baseplate of the DuroCut
(exclamation marks) becomes visible,
do not continue using the mowing head
since it may otherwise be damaged.
Replace the worn baseplate.
The mowing head comes with
instruction leaflets. Equip the mowing
head only with nylon line as described in
the instruction leaflets.
WARNING
Never use wire in place of the nylon
mowing line – risk of injury.
STIHL Polycut Mowing Head with
Polymer Blades
For mowing unobstructed edges of
meadows (without posts, fences, trees
or similar obstacles).
Check the wear limit marks!
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
instructions 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.
Risk of Kickout (Blade Thrust) with Metal
Cutting Attachments
WARNING
When using metal cut
-
ting attachments 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 right or to
the rear – opposite to the
attachment's direction of
rotation.
The risk of kickout is greatest when the
black area of the rotating cutting
attachment comes into contact with a
solid object.
10
FS 561 C-M
English
000BA020 KN
002BA355 KN
002BA509 KN
002BA210 KN
Grass Cutting Blade
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.
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.
Use the brushcutter like a scythe (sweep
it to the right and left) at ground level
when cutting grass and thinning young
stands.
To cut wild growth and scrub, lower the
brush knife down onto the growth to
achieve a shredding 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 attachment 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 diameter of more than 2 cm –
use a circular saw blade for such
work.
– Inspect the brush knife at regular
short intervals 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).
Shredder Blade
Suitable for thinning and shredding
tough, matted grass and scrub.
To cut wild growth and scrub, lower the
shredder blade down onto the growth to
achieve a shredding effect – always
keep the cutting attachment below hip
level during this process.
FS 561 C-M
11
English
002BA449 KN
Exercise extreme caution when using
this method of cutting. The higher the
cutting attachment is off the ground, the
greater the risk of injury from cuttings
being thrown sideways.
Warning! Improper use may damage the
shredder blade – 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 diameter of more than 2 cm –
use a circular saw blade for such
work.
– Inspect the shredder blade at
regular short intervals for signs of
damage. Do not continue working
with a damaged shredder blade.
– Resharpen the shredder blade
regularly and whenever it has dulled
noticeably, and have it balanced if
necessary (STIHL recommends a
STIHL servicing dealer).
Circular Saw Blade
Suitable for cutting shrubs and trees with
a maximum stem diameter of 7 cm.
Before starting the cut, accelerate the
engine up to full throttle. Perform cut
with uniform pressure.
Use circular saw blades only with a
matching limit stop of the correct
diameter.
WARNING
To reduce the risk of blade damage,
avoid contact with stones and the
ground. Resharpen the blade properly in
good time – dull teeth may result in the
blade cracking and shattering and
causing serious injury.
When felling, maintain a distance of at
least two tree lengths from the next
felling site.
Risk of kickout
The risk of kickout is highest in the black
area of the blade: Do not use this area of
the circular saw blade for cutting.
There is also a risk of kickout when
using the lighter shaded areas of the
blade: These areas of the blade should
only be used by experienced operators
with specialized training.
STIHL recommends that you use the
non-shaded area of the circular saw
blade. Always start the cut with this area
of the blade.
12
FS 561 C-M
Approved Combinations of Cutting Attachment, Deflector, Limit Stop and Harness
9
10
11
12
18
17
16
14
5
8
0000098045_001
7
6
20
1
3
2
4
15
13
19
Cutting attachment Deflector, limit stop Carrying strap
English
FS 561 C-M
13
English
Permissible combinations
Choose the correct combination from
the table depending on the cutting tool!
WARNING
For safety reasons only the cutting
attachments and deflectors and/or limit
stops within one line of the table may be
combined with one another. No other
combinations are permitted because of
the risk of accidents!
Cutting attachments
Mowing heads
1 STIHL AutoCut 56-2
2 STIHL TrimCut C 52-2
3 STIHL DuroCut 40-4
Metal cutting tools
4 Grass cutting blade 250-32 Spezial
(Ø 250 mm)
5 Grass cutting blade 250-40 Spezial
(Ø 250 mm)
6 Grass cutting blade 255-8
(Ø 255 mm)
7 Brush knife 305-2 Spezial
(Ø 305 mm)
8 Brush knife, 350-3
(Ø 350 mm)
9 Shredder blade 320-2
(Ø 320 mm)
10 Circular saw blade 225 scratcher
tooth
(Ø 225 mm)
11 Circular saw blade 225 chisel tooth
(Ø 225 mm)
12 Carbide tipped circular saw blade
225
(Ø 225 mm)
13 Circular saw blade 250, chisel tooth
(250 mm dia.)
WARNING
Non-metal grass cutting blades, brush
knives, shredder blades and circular
saw blades are not permitted.
Deflectors, limit stop
14 Deflector for mowing heads
(Ø 480 mm)
15 Deflector for mowing heads
(Ø 560 mm)
16 Guard for metal cutting tools,
items 4 to 8
17 Guard for shredder blades
18 Limit stop for circular saw blades
(Ø 225 mm)
19 Limit stop for circular saw blades
(Ø 250 mm)
Carrying strap
20 Full harness must be used
WARNING
Based on the cutting attachment being
used:
Choose the proper deflector in order to
reduce the risk of injury from thrown
objects and contact with the cutting
attachment.
Make sure your unit is equipped with the
proper handle and harness in order to
reduce the risk of injury from loss of
control and contact with the cutting
attachment.
Use grass cutting metal blades, brush
knifes and circular saw blades on this
unit only if equipped with a bike handle.
Do not use rigid polymer blades on this
unit.
14
FS 561 C-M
Mounting the Bike Handle
1
3BA003 KN
3BA004 KN
4
2
2BA001 KN
4
3
3BA005 KN
5
4900BA002 KN
7
2
4
Mounting Bike Handle with Swiveling
Handle Support
English
Do not rotate the control handle (1)
between unpacking and mounting it on
the handlebar; see also chapter on
"Adjusting the Throttle Cable".
The brushcutter is available with two
different handlebars:
2 Handlebar for machines used
primarily for mowing, brushcutting
and shredding, but also for
occasional sawing.
3 Handlebar for machines used
mainly for sawing, but also for
mowing and brushcutting.
The machine is supplied with the clamp
moldings (4) mounted on the handlebars
(2, 3).
N Do not change the position of the
clamp moldings on the handlebar
until it is mounted on the handle
support.
The mounting procedure is the same for
both types of handlebar. Therefore, the
following description only shows
handlebar (2).
Mounting the Handlebar
Assembly of the swivelling handle
support involves equipping the clamp
moldings with a spring and mounting
them on the handle support.
N Use the spring (5) from the parts kit
supplied with the machine.
N Push the spring (5) into the lower
clamp molding (6).
N Position the clamp moldings (4) with
handlebar (2) on the handle support
(7).
N Do not turn the handlebar in the
clamp moldings.
FS 561 C-M
15
English
8
3BA007 KN
5
8
3BA008 KN
7
6
10
7
9
3BA0009 KN
7
6
3BA010 KN
2
4900BA003 KN
4900BA004 KN
11
12
1
002BA451 KN
13
2
4900BA005 KN
Mounting the Control Handle
N Raise the grip of the wing screw (8)
to the upright position.
N Rotate the wing screw
counterclockwise and tighten it only
moderately.
N Position wing screw (8) in threaded
insert in handle support (7) – against
pressure of spring (5).
N Rotate wing screw clockwise until
the lower clamp molding (6) butts
against the handle support (7).
N Swing the handebar (2) forwards
through 180°.
N Only tighten the wing screw
moderately.
N Take out the screw (11) and remove
the nut (12) from the control handle
(1).
N Hold the control handle in front of
the right-hand end of the handlebar
so that the throttle cable (13) is on
the inboard side of the handlebar
(2).
N Position the clamp moldings so that
the tabs (9) on the lower clamp
molding (6) line up with the slots
(10) in the handle support (7).
16
N Fold the grip of the wing screw down
so that it is flush.
FS 561 C-M
English
14
15
15
2
4900BA007 KN
1
11
12
4900BA008 KN
4900BA009 KN
4900BA010 KN
4900BA011 KN
4900BA012 KN
2
A
4900BA013 KN
N Push the control handle (1) in this
position onto the end of the
handlebar (2) until the holes (15)
line up – throttle trigger (14) facing
down.
N Fit the nut (12) in the control handle,
insert the screw (11) and tighten it
down firmly.
Adjusting the Handlebar
Opening the wing screw
N Turn the wing screw
counterclockwise until the handle
support can be moved.
Lining up the handlebar
N Move the handlebar to the required
position.
N Position the handlebar (2) so that
distance A is about 7 in (17 cm).
Do not clamp the curved part of the
handlebar.
Closing the wing screw
N Rotate the wing screw clockwise
until it becomes difficult to turn.
N Tighten down the wing screw firmly.
N Raise the grip of the wing screw to
the upright position.
FS 561 C-M
17
English
4900BA014 KN
4900BA015 KN
2
8
002BA655 KN
N Fold the grip of the wing screw down
so that it is flush.
Checking the Throttle Cable
N After mounting the control handle,
check the throttle cable – see
chapter on "Adjusting the Throttle
Cable".
Swiveling the Handlebar
Transport position
N Loosen the wing screw (8) and
unscrew it until the handlebar (2)
can be turned clockwise.
N Turn the handlebar 90° and then
swing the handles down.
N Tighten down the wing screw (8)
firmly.
Working position
N Reverse the sequence described
above to swing the handles up and
turn the handlebar
counterclockwise.
Adjusting the Throttle Cable
It may be necessary to correct the
adjustment of the throttle cable after
assembling the machine or after a
prolonged period of operation.
Adjust the throttle cable only when the
unit is completely and properly
assembled.
N Set the throttle trigger to the full
throttle position.
N Carefully rotate the screw in the
throttle trigger in the direction of the
arrow until you feel initial resistance.
Then rotate it another half turn in the
same direction.
18
FS 561 C-M
Mounting the Deflector
1
002BA461 KN
2
002BA462 KN
3
002BA463 KN
4
002BA464 KN
5
6
002BA465 KN
Using the Proper Deflector
English
WARNING
Deflector (1) is approved only for
mowing heads, thus deflector (1) must
be attached before attaching a mowing
head.
WARNING
Deflector (2) is approved only for grass
cutting blades and brush knives, thus
deflector (2) must be attached before
attaching a grass cutting blade or brush
knife.
FS 561 C-M
WARNING
Deflector (3) is approved only for
shredder blades, thus deflector (3) must
be attached before attaching a shredder
blade, see section "Mounting deflector".
WARNING
Limit stop (4), which acts as a deflector,
is approved only for circular saw blades,
thus limit stop (4) must be attached
before attaching a circular saw blade.
Mounting the guard
Deflectors (1, 2 and 4) are mounted to
the gearbox in the same way.
N Remove dirt from joints on gearbox
and deflector – make sure that no
dirt gets into the screw holes in the
gearbox – see section on "Plugs"
N Place the deflector on the gearbox
(5)
N insert the screws (6) and tighten
them down to a torque of 89 lbf. in.
(10 Nm).
Mounting shredder deflector
Owing to the high loads on the shredder
deflector (3) and country-specific
regulations on the use of the machine for
shredding, the deflector must be
properly mounted to the machine.
A special screwdriver bit is required to
mount this deflector. The bit is available
only from specialist retailers. It has a
special drive for rotating the screws and
only allows the screws to be tightened.
Once tightened, the screws can no
longer be loosened – not even with the
special tool!
STIHL therefore recommends: Have the
shredder deflector mounted by your
STIHL dealer.
A "shredder deflector mounting kit" is
available as a special accessory for
retrofitting machines with a shredder
deflector. Depending on the machine's
original equipment, a "shredder blade
19
English
002BA495 KN
3
2
2
002BA496 KN
5
5
3
002BA497 KN
1
4
002BA498 KN
002BA499 KN
retrofit kit" may also be needed for the
conversion. Neither of these kits include
the shredder blade – it must be ordered
separately.
The "shredder blade retrofit kit" contains
clamps which butt against the gearbox
and have to be secured to the drive tube.
The kit also contains the shredder
deflector which is mounted to the
clamps.
– Installing the clamps
– Lower clamp (1): Identified by two
lugs (2) on its longitudinal axis, eight
tapped holes and a lateral notch (3)
– Upper clamp (4): Identified by holes
marked 1 to 4 and a lateral lug (5)
N Position the lower clamp (1) against
the underside of the drive tube next
to the gearbox
N position the upper clamp (4) on the
drive tube so that the lug (5)
engages the notch (3)
N hold both clamps steady in this
position
N insert a screw in the upper clamp (4)
in the hole marked with number 1
and turn it only a few turns in the
lower clamp (1)
N Insert a screw in each of the holes
marked 2, 3 and 4 and wind them
only a few turns into the lower clamp
N Slide the clamps up against the
gearbox and engage the lug (5) in
the gearbox gap (arrows)
N hold both clamps in this position!
N Screw home the screws in holes 1
and 2 as far as stop
N Tighten down the screws in holes 1
and 2 to a torque of 8 Nm
N Screw home the screws in holes 3
and 4 in that order and tighten them
down to a torque of 8 Nm
20
FS 561 C-M
English
6
002BA500 KN
002BA466 KN
8
9
6
002BA406 KN
– Mounting the shredder deflector
N Position the shredder deflector on
the lower clamp with its concave
side facing the gearbox (6)
N Screw in and tighten the screws (7)
– Plugs
Four plugs (9) are supplied with the
shredder deflector.
Mounting the Cutting
Attachment
Placing power tool on the ground
N Shut off the engine.
N Lay your power tool on its back so
that the cutting attachment
mounting face is pointing up.
Mounting Hardware for the Cutting
Attachment
The mounting hardware supplied
depends on the cutting attachment that
comes as original equipment with the
new machine.
The appropriate deflectors and
mounting hardware are available as
special accessories for subsequently
equipping the machine with different
cutting attachments – see chapter on
"Special Accessories".
To prevent the unused threaded holes
for protection in the gear unit (6) and
clamps (8) from becoming
contaminated, plugs (9) are available as
optional accessories.
FS 561 C-M
WARNING
Always use and assemble the cutting
attachment mounting hardware as
described in the chapter on "Mounting
the Cutting Attachment".
21
English
681BA191 KN
4
3
4
681BA192 KN
5
Thrust Plate
A
– For fixing mowing heads, grass
cutting blades, brush knives,
shredder blades and circular saw
blades
NOTICE
The thrust plate is needed to mount all
cutting attachments on the gearbox.
Thrust washer
A
– For fixing grass cutting blades,
brush knives, shredder blades and
circular saw blades
Rider plates, guard ring and nut
A
681BA188 KN
– For fixing grass cutting blades,
brush knives and circular saw
blades
– Guard ring (3) for brush knives and
shredder blades
Both these parts have the same
function:
– Nut (4) and thread on shaft are
681BA189 KN
protected against wear.
– Ground contact with metal cutting
attachment is minimized.
– Rider plates allow the cutting
attachment to glide along close to
ground.
Nut and combination wrench
681BA190 KN
Metal cutting attachments are mounted
to the gearbox with the nut (4).
N Loosen and tighten the nut (4) with
the combination wrench (5).
WARNING
Nuts that move too easily must be
replaced.
Cleaning gearbox and mounting
hardware for the cutting attachment
The gearbox, its surroundings, the
interior of the shield and the individual
mounting hardware for the cutting
attachment should be inspected for dirt
regularly and when changing the cutting
attachment and thoroughly cleaned if
necessary. To do this:
N Remove all mounting hardware for
the cutting attachment from the
gearbox
WARNING
Always replace a worn rider plate and
guard ring in good time.
22
FS 561 C-M
English
002BA467 KN
1
2
002BA507 KN
1
2
3
1
002BA468 KN
Attaching the thrust plate
N Slip the thrust plate (1) over the
shaft (2).
Retaining the Shaft
The shaft (2) must be blocked to install
and remove cutting attachments.
The shaft (2) can be blocked only if the
thrust plate (1) is properly fitted – the
stop pin (3) has to engage the thrust
plate.
N Insert the stop pin (3) in the bore in
the gearbox – apply slight pressure.
N Turn the shaft, nut or cutting
attachment until the stop pin
engages and the shaft is blocked
The stop pin is held in position in the
gearbox by a rubber element.
FS 561 C-M
N Fit or remove the cutting attachment
– see chapter on "Mounting the
Cutting Attachment"
N Remove the stop pin from the
gearbox
NOTICE
Always remove the stop pin used to
block the shaft since the drive train will
otherwise be damaged when the engine
runs.
Mounting the Cutting Attachment
WARNING
Use a deflector that matches the cutting
attachment – see "Mounting the
Deflector".
Fitting the mowing head with screw
mounting
Keep the supplement sheet for the
mowing head in a safe place.
All approved mowing heads are
mounted to the gearbox in the same
way.
N Check whether the fitted deflector is
approved for mowing heads – if not,
remove the deflector not approved
for mowing heads
N Mount the deflector for mowing
heads
N Attaching the thrust plate
N Turn the mowing head
anticlockwise on the shaft (1) as far
as it will go
N Retain the shaft
N Tighten the mowing head
NOTICE
Remove the tool that was used to block
the shaft.
Removing the Mowing Head
N Retain the shaft
N Turn the mowing head clockwise
Mounting and removing the metal
cutting attachment
To mount and remove metal cutting
attachments:
23
English
1
2
681BA186 KN
a
002BA469 KN
b
4
5
3
6
1
2
681BA187 KN
WARNING
Put on protective gloves – risk of injury
by the sharp cutting edges
Mounting Grass Cutting Blades or Brush
Knives
N check whether the fitted deflector is
approved for grass cutting blades or
brush knives – if not, remove the
deflector not approved for grass
cutting blades or brush knives
N Mount the deflector for grass cutting
blades and brush knives
N Attaching the thrust plate
Positioning the cutting attachment
The cutting edges of the grass cutting
blades with more than 4 blades must
point clockwise.
N Position the cutting attachment (3)
WARNING
The collar (a) must engage the hole (b)
in the cutting attachment!
Securing the cutting attachment
N Fit the thrust washer (4) – curvature
faces upward
N Fit the rider plate (5)
N Retain the shaft
N Screw on the nut (6)
counterclockwise and tighten it
down firmly
NOTICE
Remove the tool that was used to block
the shaft.
Removing the cutting attachment
N Retain the shaft
N Unscrew the mounting nut (6)
clockwise.
N Remove the cutting attachment and
its mounting hardware from the
gearbox
Mounting the brush knife (with protective
ring)
N Check whether the fitted deflector is
approved for brush knives – if not,
remove the deflector not approved
for brush knives
N Mount the deflector for grass cutting
blades and brush knives
N Using the thrust plate
Positioning the cutting attachment
24
WARNING
Nuts that move too easily must be
replaced.
Brush knives 305-2 (1) and 350-3(2)
may point in either direction – these
cutting attachments must be turned over
regularly to help avoid one-sided wear.
FS 561 C-M
N Position the cutting attachment (3)
3
002BA494 KN
3
6
4
b
a
5
002BA470 KN
3
4
2
1
b
a
WARNING
The collar (a) must engage the hole (b)
in the cutting attachment!
Securing the cutting attachment
N Fit the thrust washer (4) – curvature
faces upward
N Fit the guard ring (5) for brush
knives – opening must face up
N Retain the shaft
N Screw on the nut (6)
counterclockwise and tighten it
down firmly
WARNING
Nuts that move too easily must be
replaced.
NOTICE
Remove the tool that was used to block
the shaft.
Removing the cutting attachment
N Retain the shaft
N Unscrew the mounting nut
clockwise
N Remove the cutting attachment and
its mounting hardware from the
gearbox
Mounting shredder blade 320-2
N Check whether the fitted deflector is
approved for shredder blades – if
not, remove the deflector not
approved for shredder blades
N Mounting deflector for shredder
blade
N Using the thrust plate
N Seal the unused tapped holes with
plugs
English
N Place the shredder blade (1) in
position – the cutting edges must
point upwards
WARNING
The collar (a) must engage the hole (b)
in the cutting attachment!
Securing the cutting attachment
N Fit the thrust washer (2) – curvature
faces upward
N Fit the shredder blade guard ring (3)
– opening must face up.
N Retain the shaft
N Screw on the nut (4)
counterclockwise and tighten it
down firmly
WARNING
Nuts that move too easily must be
replaced.
FS 561 C-M
25
English
681BA165 KN
2
1
4
002BA471 KN
3
b
a
NOTICE
Remove the tool that was used to block
the shaft.
Removing the cutting attachment
N Retain the shaft
N Unscrew the mounting nut
clockwise
N Remove the cutting attachment and
its mounting hardware from the
gearbox
N If you intend to use a different
cutting attachment – remove the
shredder deflector.
Mounting Circular Saw Blades 225
N Check whether the stop for circular
saw blades is already mounted to
the machine
N If mounted, remove the deflector
N Mount the limit stop for circular saw
blades
N Using the thrust plate
N Seal the unused tapped holes with
plugs
Positioning the cutting attachment
With circular saw blades, the cutting
edges must face clockwise.
N Retain the shaft
N Screw on the nut (4)
counterclockwise and tighten it
down firmly
WARNING
Nuts that move too easily must be
replaced.
NOTICE
Remove the tool that was used to block
the shaft.
Removing the cutting attachment
N Retain the shaft
N Unscrew the mounting nut
clockwise
N Remove the cutting attachment and
its mounting hardware from the
gearbox
26
N Position the cutting attachment (1)
WARNING
The collar (a) must engage the hole (b)
in the cutting attachment!
Securing the cutting attachment
N Fit the thrust washer (2) – curvature
faces upward
N Fit the rider plate (3)
FS 561 C-M
English
Fuel
This engine is certified to operate on
unleaded gasoline and with the mix ratio
50:1.
Your engine requires a mixture of highquality premium gasoline and highquality two-stroke air-cooled engine oil.
Use premium branded unleaded
gasoline with a minimum octane rating
of 89 (R+M)/2.
Note: Models equipped with a catalytic
converter require unleaded gasoline. A
few tankfuls of leaded gasoline can
reduce the efficiency of the catalytic
converter by more than 50%.
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 the 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
high-quality fuels!
Fuels with different percentages of
ethanol are being offered. Ethanol can
affect the running behaviour of the
engine and increase the risk of lean
seizure.
Gasoline with an ethanol content of
more than 10% can cause running
problems and major damage in engines
with a manually adjustable carburetor
and should not be used in such engines.
Engines equipped with M-Tronic can be
run on gasoline with an ethanol content
of up to 25% (E25).
Use only STIHL two-stroke engine oil or
equivalent high-quality two-stroke aircooled engine oils for mixing.
We recommend STIHL 50:1 two-stroke
engine oil since it is specially formulated
for use in STIHL engines.
To ensure the maximum performance of
your STIHL engine, use a high quality 2cycle engine oil. To help your engine run
cleaner and reduce harmful carbon
deposits, STIHL recommends using
STIHL HP Ultra 2-cycle engine oil or ask
your dealer for an equivalent fully
synthetic 2-cycle engine oil.
To meet the requirements of EPA and
CARB we recommend to use STIHL HP
Ultra oil.
Do not use BIA or TCW (two-stroke
water cooled) mix oils!
Use only STIHL 50:1 heavy-duty engine
oil or an equivalent quality two-stroke
engine oil for the fuel mix in models
equipped with a catalytic converter.
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.
Fuel mix ratio
Only mix sufficient fuel for a few days
work, not to exceed 30 days of storage.
Store in approved safety fuel-canisters
only. When mixing, pour oil into the
canister first, and then add gasoline.
Examples
Gasoline Oil (STIHL 50:1 or equiva
lent high-quality oils)
liters liters (ml)
1 0.02 (20)
5 0.10 (100)
10 0.20 (200)
15 0.30 (300)
20 0.40 (400)
25 0.50 (500)
Dispose of empty mixing-oil canisters
only at authorized disposal locations.
-
FS 561 C-M
27
English
4900BA016 KN
2709BA003 KN
2709BA004 KN
3
002BA411 KN
1
2
Fueling
Preparations
WARNING
When fueling on a slope, always position
the machine with the filler cap facing
uphill.
N On level ground, position the
machine so that the filler cap is
facing up.
N Before fueling, clean the filler cap
and the area around it to ensure that
no dirt falls into the tank.
28
Opening the filler cap
N Turn the cap counterclockwise until
it can be removed from the tank
opening.
N Remove the cap.
Filling Up with Fuel
Take care not to spill fuel while fueling
and do not overfill the tank.
STIHL recommends you use the STIHL
filler nozzle for fuel (special accessory).
N Fill up with fuel.
Closing the filler cap
N Place the cap in the opening.
N Turn the cap clockwise as far as
stop and tighten it down as firmly as
possible by hand.
Fitting the Full Harness
Fitting the full harness is described in
detail in the leaflet supplied with the
harness.
The type and style of the harness
depend on the market.
Fitting the Harness
N Put on the full harness (1).
N Adjust the length of the strap so that
the carabiner (2) is about a hand’s
width below your right hip.
N Attach the carabiner to the
machine's perforated rail (3) – see
“Attaching Machine to Harness”.
N Find the right attachment point for
the cutting attachment you are
using – see "Balancing the
Machine".
FS 561 C-M
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