Stihl RL 540 User manual

STIHL RL 540
Gebrauchsanleitung
Instruction manual
Manuel d’utilisation
Gebruiksaanwijzing
Istruzioni per l'uso
Manual de instrucciones
Manual de utilização
Bruksanvisning
Bruksanvisning
Käyttöopas
Betjeningsvejledning
Instrukcja obsługi
Navodila za uporabo
Návod na obsluhu
Használati útmutató
Uputstvo za upotrebu
Upute za uporabu
Návod k použití
Lietošanas pamācība
DE
EN
FR
NL
IT
ES
PT
NO
SV
FI
DA
PL
SL
SK
HU
SR
HR
CS
LV
Naudojimo instrukcija
Instrucţiuni de utilizare
Οδηγίες χρήσης
Инструкция по эксплуатации
Инструкция за експлоатация
Посібник з експлуатації
Kasutusjuhend
Пайдаланушының
нұсқаулығы
LT
RO
EL
RU
BG
UK
ET
KK
RL 540.0
C

0478 670 9907 C. D21 TIM-12764-001 © 2021 STIHL Tirol GmbH

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0478 670 9907 C
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DEFRNLITESPTNOSVFIDAPLSLSKHU EN
0478 670 9907 C - EN
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
conditions.
STIHL also stands for premium service
quality. Our specialist dealers guarantee
competent advice and instruction as well
as comprehensive service support.
We thank you for your confidence in us
and hope you will enjoy working with your
STIHL product.
Dr. Nikolas Stihl
IMPORTANT: READ BEFORE USE AND
KEEP IN A SAFE PLACE.
2.1 General
This instruction manual constitutes
original manufacturer’s instructions in
the sense of EC Directive 2006/42/EC.
Printed on chlorine-free bleached paper. Paper is recyclable. Cover is halogen free.
1. Table of contents
Notes on the instruction manual 27
General 27
Instructions for reading the
instruction manual 28
Machine overview 28
For your safety 28
General 28
Refilling the tank – handling petrol 30
Clothing and equipment 30
Transporting the machine 30
Before operation 31
Working with your machine 31
Maintenance and repairs 33
Storage for prolonged periods
without operation 34
Disposal 34
Description of symbols 34
Standard equipment 35
Preparing the machine for
operation 35
Assembling the handlebar 35
Attaching and detaching the recoil
starter rope 35
Fuel and engine oil 35
Folding down the handlebar 36
Scarifying unit 36
Adjusting the working depth 36
Notes on working with the
machine 36
Notes on scarifying 36
Working area for operator 37
If the scarifying unit becomes
blocked 37
Safety devices 37
Safety devices 37
Motorstop lever 37
Operating the machine 37
Starting the engine 37
Stopping the engine 38
Maintenance 38
General 38
Cleaning the machine 38
Scarifying unit 38
Wheels 38
Engine 38
Storage and winter break 38
Transport 39
Transporting 39
Minimising wear and preventing
damage 39
Environmental protection 40
Standard spare parts 40
Accessories 40
EU - Declaration of conformity 40
STIHL RL 540.0 Scarifier 40
Technical specifications 41
REACH 41
Troubleshooting 41
Service schedule 43
Handover confirmation 43
Service confirmation 43
2. Notes on the instruction
manual

0478 670 9907 C - EN
28
STIHL is continually striving to further
develop its range of products; we therefore
reserve the right to make alterations to the
form, technical specifications and
equipment level of our standard
equipment.
For this reason, the information and
illustrations in this manual are subject to
alterations.
This instruction manual may describe
models that are not available in all
countries.
This instruction manual is protected by
copyright. All rights reserved, especially
the right of reproduction, translation and
processing using electronic systems.
2.2 Instructions for reading the
instruction manual
Illustrations and texts describe specific
operating steps.
All symbols which are affixed to the
machine are explained in this instruction
manual.
Viewing direction:
Viewing direction when "left" and "right"
are used in the instruction manual:
the user is standing behind the machine
and is looking forwards in the direction of
travel.
Section reference:
References to relevant sections and
subsections for further descriptions are
made using arrows. The following example
shows a reference to a section: (4.)
Designation of text passages:
The instructions described can be
identified as in the following examples.
Operating steps which require intervention
on the part of the user:
●Release bolt (1) using a screwdriver,
operate lever (2)...
General lists:
–Use of the product for sporting or
competitive events
Texts with added significance:
Text passages with added significance are
identified using the symbols described
below in order to especially emphasise
them in the instruction manual:
Texts relating to illustrations:
Illustrations relating to use of the machine
can be found in the front of this instruction
manual.
The camera symbol serves to link
the figures on the illustration pages
with the corresponding text
passages in the instruction manual.
4.1 General
These safety regulations must
be observed when working with
the machine.
Read the entire instruction
manual before using the
machine for the first time. Keep
the instruction manual in a safe
place for future reference.
Observe the operating and maintenance
instructions contained in the separate
engine instruction manual.
These safety precautions are essential for
your safety, however the list is not
exhaustive. Always use the machine in a
reasonable and responsible manner and
Danger
Risk of accident and severe injury
to persons. A certain type of
behaviour is necessary or must be
avoided.
Warning
Risk of injury to persons. A certain
type of behaviour prevents possible
or probable injuries.
Caution
Minor injuries or material damage
can be prevented by a certain type
of behaviour.
Note
Information for better use of the
machine and in order to avoid
possible operating errors.
1
3. Machine overview
1Upper handlebar with controls
2Cable clip
3Recoil starter rope
4Rotary handle
5Rating plate with machine number
6Housing
7Carrying handle
8Combustion engine
9Discharge flap
10Motorstop lever
11 Working depth rotary handle
12Scarifying unit lever
4. For your safety
1

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DEFRNLITESPTNOSVFIDAPLSLSKHU EN
0478 670 9907 C - EN
be aware that the user is responsible for
accidents involving third parties or their
property.
Make sure that you are familiar with the
controls and use of the machine.
The machine must only be used by
persons who have read the instruction
manual and are familiar with operation of
the machine. The user should seek expert
and practical instruction prior to initial
operation. The user must receive
instruction on safe use of the machine
from the vendor or another expert.
During this instruction, the user should be
made aware that the utmost care and
concentration are required for working with
the machine.
Residual risks persist even if you operate
this machine according to the instructions.
Only give or lend the machine, including
any accessories, to persons who are
familiar with this model and how to operate
it. The instruction manual forms part of the
machine and must always be provided to
persons borrowing it.
The machine must only be operated by
persons who are well rested and in good
physical and mental condition. If your
health is impaired, you should consult your
doctor to determine whether working with
the machine is possible. The machine
should not be operated after the
consumption of alcohol, drugs or
medications which impair reactions.
Make sure that the user is physically,
sensorily and mentally capable of
operating the machine and working with it.
If the user is physically, sensorily or
mentally impaired, the machine must only
be used under supervision or following
instruction by a responsible person.
Make sure that the user is of legal age or
being trained under supervision in a
profession in accordance with national
regulations.
Intended use:
The machine is only intended for scarifying
lawns. Its use for other purposes is not
permitted and may be dangerous or result
in damage to the machine.
The machine is intended for private use.
Caution – risk of accident!
Due to the physical danger to the user, the
machine must not be used for the following
applications (incomplete list):
–Trimming bushes, hedges and shrubs
–Cutting creepers
–Caring for lawn roofs and balcony
boxes
–Shredding or chopping tree or hedge
cuttings
–Clearing paths (vacuuming, blowing)
–Levelling earth mounds, e.g.mole hills
–Transporting scarified material, except
in the grass catcher box (accessory –
not included in standard equipment)
intended for this purpose.
For safety reasons, any modification to the
machine, except the proper installation of
accessories approved by STIHL, is
forbidden and results in voiding of the
warranty cover. Information regarding
approved accessories can be obtained
from your STIHL specialist dealer.
In particular, any tampering with the
machine which increases the power output
or speed of the engine or motor is
forbidden.
It is not permitted to transport objects,
animals or persons, particularly children,
on the machine.
Particular care is required during use in
public green spaces, parks, sports fields,
along roads and in agricultural and forestry
businesses.
Caution! Danger to health due
to vibrations. Excessive
exposure to vibrations can
result in damage to the
cardiovascular or nervous system,
particularly in persons with cardiovascular
problems. Please consult a physician if
you experience symptoms that may have
been caused by vibrational loads.
Symptoms of this kind principally affect the
fingers, hands or wrists and include
(incomplete list):
–numbness,
–pain,
–muscular weakness,
–skin discolouration,
–unpleasant tingling sensation.
Hold the handlebar tightly, but not tensed,
with both hands in the designated
locations during operation.
Plan your working times so that more
severe physical strains over a longer
period are avoided.
Only release the machine if it is on a level
surface and cannot roll away by itself.
Risk of death from suffocation!
Packaging material is not a toy -
danger of suffocation! Keep
packaging material away from
children.

0478 670 9907 C - EN
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4.2 Refilling the tank – handling petrol
Petrol must only be stored in appropriate,
tested containers (canisters). Always
screw on the fuel tank and canister caps
properly and tightly. Defective caps must
be replaced for safety reasons.
Never use beverage bottles or similar for
disposal or storage of fuels and lubricants.
Persons, particularly children, could be
tempted to drink out of them.
Keep petrol away from sparks,
naked flames, pilot lights, heat
sources, and other ignition
sources. Do not smoke!
Refill the tank out-of-doors and do not
smoke during refilling.
Before refilling the tank, stop the engine
and allow it to cool.
Refilling with petrol must be performed
before the engine is started. When the
engine is running or is hot, the tank cap
must not be removed and the tank must
not be refilled with petrol.
Do not overfill the fuel tank!
To give the fuel room to expand,
never fill the fuel tank past the
lower edge of the filler neck.
Observe the additional
instructions in the engine
instruction manual.
If petrol is spilled, the engine
must only be started after the petrol-
contaminated area has been cleaned. All
attempts at starting must be avoided until
the petrol fumes have dispersed (wipe
dry).
Any spilt fuel must be wiped up
immediately.
Clothing must be changed if it comes into
contact with petrol.
Never store the machine with petrol in the
tank inside a building. The resulting petrol
fumes could come into contact with naked
flames or sparks and could be ignited.
If it is necessary to drain the tank, this must
be done out of doors.
4.3 Clothing and equipment
Always wear sturdy footwear
with high-grip soles when
working. Never work barefoot
or, for example, in sandals.
Always wear safety glasses and
hearing protection when
working. Wear them at all times.
Also always wear sturdy gloves
and tie up and secure long hair
(headscarf, cap, etc.) when
performing maintenance and
cleaning work or when transporting the
machine.
Always wear long trousers and tight-fitting
clothing when operating the machine.
Never wear loose clothes which may
become caught on moving parts (control
levers) – do not wear jewellery, ties or
scarves.
Noise is produced when
working. Noise can damage the
hearing.
Wear hearing protection.
4.4 Transporting the machine
Always wear gloves in order to prevent
injuries due to sharp-edged and hot
components.
Do not transport the machine with the
engine running.
Before transporting the machine
●stop the engine,
●place the scarifying unit in the transport
position,
●allow the blades to come to a standstill
and
●detach the spark plug socket.
Only transport the machine once the
engine has cooled down and with an
empty fuel tank.
Take the weight of the machine into
account and use suitable loading aids
(loading ramps, lifters) if necessary.
Secure the machine and any machine
components being transported (e.g. the
grass catcher box available as an
accessory) on the load floor using
adequately dimensioned fastening
material (belts, ropes, etc.).
Avoid contact with the blades when lifting
and carrying the machine.
Observe the information in the section
"Transport". It describes how to lift and
lash the machine. (12.1)
When transporting the machine, always
observe regional legislation, especially
regarding load security and the transport
of objects on load floors.
Danger to life!
Petrol is poisonous and extremely
inflammable.

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DEFRNLITESPTNOSVFIDAPLSLSKHU EN
0478 670 9907 C - EN
4.5 Before operation
Make sure that only persons who are
familiar with the instruction manual are
permitted to use the machine.
Check the fuel system (particularly visible
parts such as e.g. tank, tank cap, hose
connections) before operating the
machine. In the event of any leaks or
damage, do not start the engine – fire
hazard!
Have the machine repaired by a specialist
dealer prior to operation.
Observe the local regulations regarding
permitted operating times for gardening
power tools with combustion engines.
The machine must not be used on paved
or gravelled surfaces where ejected
material can cause injuries.
Carefully inspect the complete area on
which the machine is to be used and
remove any stones, sticks, wires, bones
and other foreign objects which could be
thrown up by the machine. Obstacles (e.g.
tree stumps, roots) can be easily
overlooked in long grass.
For this reason, mark all foreign objects
(obstacles) which are hidden in the lawn
and cannot be removed before
commencing work with the machine.
All faulty, worn or damaged parts must be
replaced before using the machine.
Replace any illegible or damaged danger
signs and warnings on the machine. Your
STIHL specialist has a supply of
replacement stickers and all the other
spare parts.
The machine must only be used in good
operating condition. Therefore, before
each use check whether
–The machine is properly assembled.
–The scarifying unit (blade shaft, blades,
spacer bushings and fastening) are in
perfect condition – in particular check
for secure fastening, damage (notches
or cracks) and wear.
–The safety devices (e.g.discharge flap
with rubber sheet, housing, handlebar,
motorstop lever) are in perfect condition
and working properly.
–The grass catcher box (accessory – not
included in standard equipment) is
undamaged and correctly installed – a
damaged grass catcher box must not
be used.
Carry out any necessary work or consult a
specialist dealer. STIHL recommends
STIHL specialist dealers.
4.6 Working with your machine
Never work when animals or
persons, particularly children,
are in the danger area.
The switch and safety devices installed in
the machine must not be removed or
bypassed. In particular, never secure the
motorstop lever to the handlebar (e.g. by
tying it).
The handlebar must always be installed
correctly and must not be modified. Never
operate the machine with the handlebar
folded down.
Never attach any objects to the handlebar
(e.g. work clothing).
Do not operate the machine in the rain or
during thunder storms, particularly when
there is a risk of lightning strike.
Only work during the day or with good
artificial light.
The risk of accidents is higher if the ground
is damp due to increased danger of
slipping.
Particular caution should be exercised
during working in order to prevent slipping.
If possible, avoid using the machine when
the ground is damp.
Do not leave the machine in the rain.
Exhaust gases:
The machine generates
poisonous exhaust gases when
the engine is running. The
gases contain poisonous
carbon monoxide, a colourless and
odourless gas, as well as other pollutants.
The engine must never be operated in
closed or poorly ventilated spaces.
Starting:
Exercise care when starting the machine
and observe the instructions contained in
the section entitled "Operating the
machine" (10.1). Starting the machine
in accordance with these instructions
reduces the risk of injury.
Risk of injury!
If the starter rope recoils at speed, the
hand and arm will be pulled towards the
engine faster than the starter rope can be
released. This kickback can result in
broken bones, crush injuries and sprains.
Keep your feet a safe distance from the
blades when starting the machine.
Danger to life through poisoning!
In the case of nausea, headache,
impaired vision (e.g. decreasing
field of view) hearing disorder,
dizziness, decreasing power of
concentration, stop working
immediately. These symptoms may
be caused by excessively high
exhaust gas concentrations.

0478 670 9907 C - EN
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The machine must not be tilted during
start-up.
Do not start the engine if the discharge
chute is not covered by the discharge flap
or the grass catcher box (accessory – not
included in standard equipment).
Working on slopes:
Always work across and back on slopes,
never up and down.
If the user loses control when working up
and down, there is a risk of being run over
by the machine.
Be particularly careful when changing
direction on a slope.
Always ensure good stability on slopes
and avoid mowing on excessively steep
slopes.
For safety reasons, the machine must not
be used on slopes with an inclination of
more than 25° (46.6%). Risk of injury!
A slope inclination of 25° corresponds to a
vertical height increase of 46.6 cm for a
100 cm horizontal distance.
In order to ensure an adequate oil supply
for the engine, the information in the
accompanying engine instruction manual
must be additionally observed when using
the machine on slopes.
Working:
Caution – risk of injury!
Never put hands or feet on or
underneath rotating parts.
Never touch rotating blades.
Always keep away from the discharge
opening. Always observe the safety
distance provided by the handlebar.
Do not try to examine the scarifying unit
while the machine is operating. Never
open the discharge flap and/or remove the
grass catcher box (accessory – not
included in standard equipment) when the
blades are running. Rotating blades can
cause injury.
Do not lean on the machine and always
maintain your balance and firm footing.
Only operate the machine at walking
speed – never run when working with the
machine. Working quickly with the
machine increases the risk of injury due to
stumbling, slipping, etc.
Note that the blades catch on the ground
when scarifying in the lowered position or
when running over bumps. If the blades
are set too low, the scarifier could
accelerate unexpectedly, possibly
resulting in loss of control of the machine.
Always place the scarifying unit in the
transport position before turning it around.
Be particularly careful when turning the
machine around or pulling it towards you.
Risk of stumbling!
Objects hidden in the turf (lawn sprinkler
systems, posts, water valves, foundations,
electrical wires, etc.) must be avoided.
Never run over any such foreign objects.
Use the machine with great care when
working near slopes, terraces, ditches and
embankments. In particular, ensure that
you maintain sufficient distance to such
danger areas.
Beware of the blades running
on for several seconds before
coming to a standstill.
Stop the engine and place the
scarifying unit in the transport
position
–before pushing the scarifier to and from
the area to be worked,
–before pushing the scarifier onto an
area not covered with grass,
– before the machine has to be tilted for
transportation,
–before adjusting the working depth,
–before opening the discharge flap or
removing the grass catcher box (special
accessory – not included in standard
equipment),
–before leaving the scarifier or if the
machine is unattended,
– before re-filling the tank. Allow the
engine to cool down before re-filling the
tank. Fire hazard!
Stop the engine, place the
scarifying unit in the transport
position and detach the spark
plug socket
–before folding down the handlebar,
– before lifting or carrying the machine.
Stop the engine, detach the
spark plug socket and ensure
that the blades have come to a
complete standstill

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DEFRNLITESPTNOSVFIDAPLSLSKHU EN
0478 670 9907 C - EN
–before checking, cleaning or working on
the machine,
–before freeing a blocked scarifying unit
or unblocking the discharge chute,
–if there has been a collision with an
obstacle. Inspect the machine for
damage and perform the necessary
repairs before re-starting and using the
machine,
–if the machine vibrates excessively. In
this case the machine must be checked
immediately.
In the event of excessive vibration or after
a collision with an obstacle, check the
machine, in particular the scarifying unit
(blade shaft, blades, spacer bushings and
fastening), the housing and the discharge
flap for damage and loose parts and carry
out the necessary repairs before re-
starting and working with the machine. If
you do not have the appropriate expertise,
have the necessary repairs carried out by
a specialist dealer (STIHL recommends
STIHL specialist dealers).
4.7 Maintenance and repairs
Before beginning cleaning, adjustment,
repair and maintenance operations:
●Park the machine on firm and level
ground
●Stop the engine and allow it to cool
down
●Detach the spark plug
socket.
Caution – risk of injury!
Keep the spark plug socket
away from the spark plug; an inadvertent
ignition spark can result in fires or electric
shocks.
Inadvertent contact between the spark
plug and the spark plug socket can result
in unwanted starting of the engine.
Allow the machine to cool down before
working on or around the engine, exhaust
manifold or muffler in particular.
Temperatures of 80° C and above can be
reached. Danger of burns!
Direct contact with engine oil can be
dangerous. Engine oil must not be spilled.
STIHL recommends leaving the task of
topping up engine oil or performing engine
oil changes to a STIHL specialist dealer.
Cleaning:
The complete machine must be cleaned
thoroughly following use. (11.2)
Remove accumulated clipping deposits
using a stick. Clean the underside of the
machine with water and a brush.
Never use high-pressure cleaners and do
not clean the machine under running water
(e.g. using a garden hose).
Do not use aggressive cleaning agents.
These can damage plastics and metals,
impairing the safe operation of your STIHL
machine.
In order to prevent fire hazards, keep the
area around the air vents, cooling ribs and
the area of the exhaust free from
e.g. grass, straw, moss, leaves or
escaping grease.
Maintenance operations:
Only maintenance operations described in
this instruction manual may be carried out.
Have all other work performed by a
specialist dealer.
If you do not have the necessary expertise
or auxiliary equipment, please always
contact a specialist dealer.
STIHL recommends that you have
maintenance operations and repairs
performed exclusively by a STIHL
specialist dealer.
STIHL specialist dealers regularly attend
training courses and are provided with
technical information.
Only use tools, accessories or
attachments approved for this machine by
STIHL or technically identical parts.
Otherwise, there may be a risk of
accidents resulting in personal injury or
damage to the machine. If you have any
questions, please consult a specialist
dealer.
The characteristics of original STIHL tools,
accessories and spare parts are optimally
adapted to the machine and the user's
requirements. Genuine STIHL spare parts
can be recognised by the STIHL spare
parts number, by the STIHL lettering and,
if present, by the STIHL spare parts
symbol. On smaller parts, only the symbol
may be present.
Risk of injury through defective
parts!
Strong vibration is normally an
indication of a fault.
In particular, the machine must not
be operated with a damaged or
bent scarifying unit (blade shaft,
blades, spacer bushings and
fastening).
Risk of injury!
Pulling the recoil starter rope starts
the blades rotating. Always ensure
sufficient distance between the
blades and your body, particularly
your hands and feet, when you pull
the recoil starter rope.

0478 670 9907 C - EN
34
Always keep warning and information
stickers clean and readable. Damaged or
missing stickers must be replaced by new,
original plates from your STIHL specialist
dealer. If a component is replaced with a
new component, ensure that the new
component is provided with the same
stickers.
Wear thick work gloves and exercise
extreme care when performing work on the
scarifying unit.
For safety reasons, fuel-carrying
components (fuel line, fuel cock, fuel tank,
tank cap, connections, etc.) must be
checked regularly for damage and leaks
and replaced by a technician if necessary
(STIHL recommends STIHL specialist
dealers).
Ensure that all nuts, pins and screws are
securely tightened, so that the machine is
in a safe operating condition at all times.
Check the complete machine and the
grass catcher box (accessory – not
included in standard equipment) for wear
or damage on a regular basis, particularly
before extended periods when the
machine is not in use (e.g. over winter).
For safety reasons, worn or damaged
parts must be replaced immediately to
ensure that the machine is always in a safe
operating condition.
Replace damaged mufflers and guard
plates. The scarifier must not be used with
a defective muffler.
Never alter the basic setting of the engine
or run at excessive engine speeds.
Components or guards that are removed
for maintenance operations must be
properly reinstalled immediately.
4.8 Storage for prolonged periods
without operation
Stop the engine and place the scarifying
unit in the transport position
–before leaving the scarifier or if the
machine is unattended.
Store the cooled machine in a dry and
locked place.
Ensure that the machine is protected from
unauthorised use (e.g. by children).
Thoroughly clean the machine before
storage (e.g. winter break).
Store the machine in good operational
condition.
Store the machine on a level surface so
that it cannot unintentionally roll away.
4.9 Disposal
Ensure that old machines and
consumables (engine oil and fuel) are
properly disposed of. Render the machine
unusable prior to disposal. To prevent
accidents, render the engine unusable
prior to disposal. In particular, remove the
ignition lead, empty the fuel tank and drain
the engine oil.
Risk of injury caused by the scarifying
unit!
Always store an old machine in a safe
place prior to scrapping. Make sure that
the machine and the blades are kept out of
the reach of children.
5. Description of symbols
Caution!
Read the instruction man-
ual before initial use.
Risk of injury!
Keep other persons out of
the danger area.
Risk of injury!
Caution: sharp work tools. –
Take care not t o cut your fin-
gers or toes. – The blades
continue to rotate after the
engine has been switched
off. – Detach the spark plug
socket before performing
maintenance work.
Risk of injury!
Caution: cutting tools run
on.
Wear hearing protection.
Wear safety glasses.

35
DEFRNLITESPTNOSVFIDAPLSLSKHU EN
0478 670 9907 C - EN
●Place the machine on level and firm
ground when performing all the
operations described.
●Remove the cardboard insert (1) from
the underside of the machine.
7.1 Assembling the handlebar
Installing the upper handlebar:
●Fit upper handlebar (1) onto both
parts of the lower handlebar.
●Insert flat head bolts with cable
guide (B) through the bores from the
inside to the outside and tighten with
rotary handles (C).
●Attach motorstop cable (2) to right-hand
cable guide (3) and scarifying unit
cable (4) to left-hand cable guide (5) as
shown.
Installing the cable clips:
●Install the first cable clip (D) on the
upper handlebar. Distance between the
cable clip and switch:
25 - 27 cm
●Install the second cable clip (D) on the
lower handlebar.
●Insert motorstop cable (2) into the two
cable clips as shown. Close tab (6) and
allow it to engage.
7.2 Attaching and detaching the
recoil starter rope
●Detach the spark plug socket
from the engine before attaching and
detaching the recoil starter rope –
replace afterwards if necessary.
Attaching:
●Press motorstop lever (1) to the
handlebar and hold.
●Slowly pull out recoil starter rope (2)
and hold. Release the motorstop lever.
●Attach recoil starter rope (2) in rope
guide (3).
Detaching:
●Detach recoil starter rope (2) from rope
guide (3) and slowly return.
7.3 Fuel and engine oil
Start the engine.
Stop the engine.
Scarifying unit in transport
position
Scarifying unit in operating
position
6. Standard equipment
Item Designation Qty.
ABasic unit 1
BFlat head bolt with cable
guide 2
CRotary handle 2
DCable clip 2
Instruction manual 1
Engine instruction manual 1
2
7. Preparing the machine for
operation
Risk of injury!
Observe the safety instructions in
the section "For your safety". (4.)
Follow the instructions in the
section "Transporting the machine"
when lifting the scarifier out of the
packaging. In particular, wear
gloves and avoid contact with the
blades. (4.4)
3
Avoid damage to the machine!
Top u p engine oi l b efore starting f or
the first time. Use a suitable filling
aid when topping up the engine oil
and when refuelling (e.g. funnel).
4
5

0478 670 9907 C - EN
36
Engine oil:
Please consult the engine
instruction manual for the type of
engine oil to be used and the oil capacity.
Check the oil filling level at regular
intervals (see engine instruction manual).
Avoid exceeding or falling below the
correct oil level.
Screw on the oil tank cap properly prior to
operating the engine.
Fuel:
Recommendation:
Fresh good quality fuels,
unleaded petrol.
Please consult the engine instruction
manual for details on the fuel quality
(octane rating).
7.4 Folding down the handlebar
Transport position – for space-saving
transport and storage:
●Detach the recoil starter rope. (7.2)
●Unscrew rotary handles (1) until they
turn freely, then fold down upper
handlebar (2) forwards and allow it to
rest on the machine.
Working position – for pushing the
machine:
●Fold up upper handlebar (2) rearwards
and hold with one hand.
●Tighten rotary handles (1).
●Attach the recoil starter rope. (7.2)
7.5 Scarifying unit
Lowering the scarifying unit into
the operating position:
●Place scarifying unit lever (1)
in the operating position in
the direction of the arrow as
shown. The scarifying unit is
lowered to the set working
depth. (7.6)
Raising the scarifying unit into
the transport position:
●Place scarifying unit lever (1)
in the transport position and
allow it to engage.
7.6 Adjusting the working depth
Six different working depths can be
set.
Level 1:
Shallowest working depth
Level 6:
Deepest working depth
Adjustment range: 25 mm.
●1 Place scarifying unit (1) in the
transport position and allow it to
engage. (7.5)
●2 Set the required working depth via
working depth rotary handle (2).
Notes:
–Always begin the scarifying process at
the shallowest working depth (level 1).
If the scarifying result is insufficient,
increase the working depth in steps.
–Blade wear can be compensated by
selecting a deeper working depth.
–Levels 5 and 6 should not be selected
with new blades as this can damage the
grass roots during scarifying.
8.1 Notes on scarifying
Regular scarifying renders the lawn less
sensitive to dryness, heat and cold.
Aerating the lawn annually makes it less
prone to diseases, the ground is also
firmed up and bare patches (caused by
ball games or parties) are repaired. – A
green lawn with even growth is created.
Time:
The best time for annual scarifying is the
early spring.
If a lawn is scarified more often than once
Danger of pinching!
The upper handlebar can be folded
down when rotary handles (1) are
released. For this reason, always
hold upper handlebar (2) with one
hand at its highest point when you
loosen the rotary handles.
The machined grooves in the
threads of the flat head bolts
prevent the rotary handles from
becoming completely detached
from the bolts (safeguard against
loss).
6
Risk of injury!
The scarifier moves forwards when
the rotating scarifying unit is
lowered.
8
9
10
The working depth is dependent on
blade wear and the ground. The
scarifier is pressed against the
surface of the lawn through the
rotation of the blades and through
its own weight: on softer ground,
the scarifier cuts deeper into the
ground than on a compact surface.
8. Notes on working with the
machine

37
DEFRNLITESPTNOSVFIDAPLSLSKHU EN
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annually using a scarifier, this process
should not be performed during
midsummer or the middle of autumn.
After scarifying, the lawn needs to
regenerate for a few weeks.
Consequently, the ideal time for scarifying
is the period of growth in the spring.
Heavily matted lawns should be scarified
twice a year: first in the spring and again in
the autumn.
Lawn preparation:
Before scarifying, mow the grass to a
height of approx. 2 to 3 cm.
The shorter the lawn is cut, the better the
scarifying results.
The lawn must not be freshly seeded, wet
or excessively dry.
Tips for optimum working results:
●The ground should only be scarified so
as not to damage the grass roots.
(7.6)
●Guide the scarifier in straight parallel
strips.
●Maintain an even working speed.
●Always place the scarifying unit in the
transport position before turning it
around. (7.5)
●Avoid staying stationary in one place for
any duration.
●In the case of heavily matted lawns,
repeat the process perpendicular to the
initial strips.
After scarifying:
●Free the lawn completely of scarified
material.
●Fertilise the lawn and re-seed any bare
patches that may have appeared.
●Water the lawn generously.
8.2 Working area for operator
●For safety reasons, the operator
must stay within the working area
behind the handlebar when starting the
engine and when the engine is running.
Always observe the safety distance
provided by the handlebar.
●The scarifier must only be operated by
one person. Other persons must keep
out of the danger area. (4.)
8.3 If the scarifying unit becomes
blocked
●Stop the engine immediately and
detach the spark plug socket.
●Then inspect the machine, in particular
the scarifying unit, for damage and
eliminate the cause of the fault.
The machine is equipped with several
safety devices for safe operation and for
the prevention of improper use.
9.1 Safety devices
The scarifier is equipped with safety
devices which prevent inadvertent contact
with the blades and with ejected scarified
material.
These include the housing, discharge flap
and correctly installed handlebar.
9.2 Motorstop lever
The scarifier is equipped with a
motorstop device.
The engine stops when motorstop
lever (10) is released during running
operation.
10.1 Starting the engine
●Check the oil and fuel levels. (7.3)
●1Press motorstop lever (1) to the
handlebar and hold.
●2Slowly pull out recoil starter rope (2)
to the point of compression resistance.
Then pull vigorously and quickly to
arm’s length. Slowly return recoil starter
rope (2) so that it is rolled up again.
●Repeat the procedure until the engine
starts.
9. Safety devices
Risk of injury!
If a safety device is found to be
defective, the machine must not be
operated. Consult a specialist
dealer; STIHL recommends STIHL
specialist dealers.
7
10. Operating the machine
Risk of injury!
Only start the engine when the
scarifying unit is in the transport
position.
Never tip the scarifier to start it.
Thanks to the fixed throttle setting,
the engine always operates at the
optimum working speed after
starting.
1
11

0478 670 9907 C - EN
38
●Then lower the scarifying unit into the
operating position and scarify the lawn.
(7.5)
10.2 Stopping the engine
●Place the scarifying unit in the
transport position. (7.5)
●Release motorstop lever (1). The
engine and scarifying blades come to a
stop after a short run-down time.
11.1 General
Annual service by the specialist dealer:
The scarifier should be inspected once
annually by a specialist dealer. STIHL
recommends STIHL specialist dealers.
11.2 Cleaning the machine
Maintenance interval:
After each use
Looking after your machine carefully will
protect it against damage and extend its
service life.
●Place the scarifier on firm, level and flat
ground.
●Before tipping up the scarifier into the
cleaning position, detach the grass
catcher box (accessory – not included
in standard equipment) and empty the
fuel tank.
●Cleaning position:
Fold down upper handlebar (1) (7.4)
and lift discharge flap (2). Tilt the
scarifier upwards at the front by raising
it at carrying handle (3). Set down the
scarifier as shown and allow the upper
handlebar to rest on the ground.
●Clean the machine using a little water
and a brush or with a cloth. Remove
accumulated clipping deposits using a
stick. If necessary, use a special
cleaner (e.g. STIHL special cleaner).
●Never spray water or high-pressure
cleaner onto engine components, V-
belts, seals or bearing points.
●Clean the scarifying unit and engine
cooling ribs.
11.3 Scarifying unit
Maintenance interval:
Before each use
●Tilt the scarifier upwards into the
cleaning position. (11.2)
●Check the scarifying unit (consisting of
blade shaft, blades, nuts, washers and
spacer bushings) for wear, secure
seating, cracks or other damage.
Wear check:
The blades must be replaced when the
ground is not scored, even at the deepest
working depth (level 6). Blades must
always be replaced as a complete set.
Never re-sharpen blades.
Have defective or worn parts repaired or
replaced by a specialist dealer. STIHL
recommends STIHL specialist dealers.
11.4 Wheels
The wheel bearings are maintenance-free.
11.5 Engine
Maintenance interval:
See engine instruction manual.
General information:
Observe the operating and maintenance
instructions in the attached engine
instruction manual.
To achieve a long service life, it is always
particularly important to maintain a
sufficient level of oil and to change the oil
and air filter regularly.
The recommended oil change intervals as
well as information on engine oil and oil
capacities can also be found in the engine
instruction manual.
The cooling ribs must always be kept clean
to ensure that the engine is adequately
cooled.
11.6 Storage and winter break
●Store the scarifier in a dry and locked
place that is generally free of dust.
Make sure that the machine is kept out
of the reach of children.
●Only store the scarifier in good
operating condition, fold down the
handlebar if necessary.
11. Maintenance
Risk of injury!
Observe the safety instructions in
the section "For your safety" (4.).
12
13
Risk of injury!
Worn blades may break off and
cause serious injuries. It is
therefore essential that
maintenance is always performed
as described.

39
DEFRNLITESPTNOSVFIDAPLSLSKHU EN
0478 670 9907 C - EN
●Keep all nuts, pins and screws tightly
fastened, replace danger signs and
warnings on the machine that have
become illegible, check the entire
machine and grass catcher box
(accessory – not included in standard
equipment) for wear and damage.
Replace all worn or damaged parts.
●Any machine faults must be completely
remedied prior to storage.
Also note the following points when storing
the scarifier for long periods (winter break):
●Carefully clean all external parts of the
machine, in particular the cooling ribs.
●Thoroughly lubricate/grease all moving
parts.
●Empty the fuel tank and carburettor
(e.g. by running empty).
●Unscrew the spark plug and pour
approx. 3 cm³ of engine oil into the
engine via the spark plug hole. Turn the
engine several times with the spark
plug removed.
●Re-install the spark plug.
●Perform an oil change as per the engine
instruction manual.
●Cover the engine well and store the
machine in a dry, dust-free room in the
normal position (upright on its 4
wheels).
12.1 Transporting
Carrying the machine:
●The scarifier must always be carried by
two people. Always ensure sufficient
distance between the blades and your
body, particularly your feet and legs.
Lift or carry the machine at carrying
handle (1) and at upper handlebar (2)
or, when the upper handlebar is folded
down, at the lower handlebar
sections (3).
Securing the machine (lashing):
●Secure the scarifier and grass catcher
box (accessory – not included in
standard equipment) on the load floor
using suitable fastening materials. Only
transport the machine upright on its
wheels.
●Fasten ropes or straps to lower
handlebar sections (3), to front axle (4)
and to the housing strut under
discharge flap (5).
Important information on maintenance
and care of the product group
Manually operated scarifier with
combustion engine (STIHL RL)
STIHL assumes no liability for material or
personal damage caused by the non-
observance of information contained in the
operating instructions, in particular with
regard to safety, operation and
maintenance, or which arise through the
use of unauthorised attachment or spare
parts.
Please always observe the following
important information for the prevention of
damage or excessive wear to your STIHL
machine:
1. Wearing parts
Some parts of the STIHL machine are
subject to normal wear even when used
properly and must be replaced in due time
depending on type and duration of use.
These include:
–Blades
–V-belt
–Grass catcher box (accessory – not
included in standard equipment)
2. Compliance with the information in
this instruction manual
The STIHL machine must be used,
maintained and stored with the care
described in this instruction manual. Any
damage caused by non-compliance with
the safety, operating and maintenance
instructions is the sole responsibility of the
user.
Fire hazard!
Keep the spark plug socket away
from the spark plug hole (danger of
ignition).
12. Transport
Risk of injury!
Observe the section "For your
safety" before transporting. (4.)
Carry the machine only with the
help of a second person. Always
wear suitable safety clothing
(safety shoes, thick gloves).
Detach the spark plug socket
before lifting or transporting.
14
13. Minimising wear and
preventing damage

0478 670 9907 C - EN
40
This applies in particular to:
–Product modifications not approved by
STIHL.
–Use of fuel and lubricants not approved
by STIHL (lubricants, petrol and engine
oil, see engine manufacturer's
specifications).
–The use of tools or accessories which
are not approved or suitable for the
machine, or are of inferior quality.
–Improper use of the product.
–Use of the product for sporting or
competitive events.
–Resultant damage due to continued use
of the product with defective
components.
3. Maintenance operations
All operations listed in the section
"Maintenance" must be performed
regularly.
If these maintenance operations cannot be
carried out by the user, a specialist dealer
must be commissioned to perform them.
STIHL recommends that you have
maintenance operations and repairs
performed exclusively by a STIHL
specialist dealer.
STIHL specialist dealers regularly attend
training courses and are provided with
technical information.
If these operations are neglected, faults
may arise which are the responsibility of
the user.
These include:
–Corrosive and other resultant damage
caused by incorrect storage.
–Damage to the machine through the
use of inferior-quality spare parts.
–Damage due to untimely or inadequate
maintenance or damage due to
maintenance or repair work not
performed in the workshops of
specialist dealers.
Scarified material should be
composted and not disposed of
in household waste.
The machine, its packaging and
accessories are all produced
from recyclable materials and must be
disposed of accordingly.
By disposing of materials separately, and
in an environmentally friendly manner,
valuable recyclable waste can be re-used.
For this reason, the machine should be
disposed of for recycling at the end of its
useful life. Pay particular attention to the
information in the section "Disposal"
during disposal. (4.9)
Consult your recycling centre or your
specialist dealer for information on the
proper disposal of waste products.
Blade set:
6290 007 1000
Grass catcher box AFK 050:
6910 700 9600
17.1 STIHL RL 540.0 Scarifier
STIHL Tirol GmbH
Hans Peter Stihl-Strasse 5
6336 Langkampfen
Austria
declares under our sole responsibility that
–design: scarifier
–manufacturer's brand: STIHL
–type: RL540.0
–serial number: 6290
complies with the relevant provisions of
Directives 2000/14/EC, 2006/42/EC,
2014/30/EU and 2011/65/EU and has
been developed and manufactured in
accordance with the versions of the
following standards valid on the date of
manufacture: EN 13684 and EN 14982
(where applicable).
Name and address of relevant, named
location:
TÜV Rheinland LGA Products GmbH
Tillystrasse 2
D-90431 Nuremberg
The measured and guaranteed sound
power levels were determined in
accordance with Directive 2000/14/EC,
Appendix V.
–Measured sound power level: 92dB(A)
–Guaranteed sound power level:
94 dB(A)
The technical documents are stored in the
Product Approval department at STIHL
Tirol GmbH.
14. Environmental protection
15. Standard spare parts
16. Accessories
17. EU - Declaration of
conformity

41
DEFRNLITESPTNOSVFIDAPLSLSKHU EN
0478 670 9907 C - EN
The year of manufacture and machine
number are indicated on the scarifier.
Langkampfen, 02.11.2020
STIHL Tirol GmbH
p.p.
Matthias Fleischer, Head of Research and
Development Division
p.p.
Sven Zimmermann, Head of Quality
Division
_________________________________
Importer for Great Britain
ANDREAS STIHL Ltd.
Stihl House
Stanhope Road
CAMBERLEY
SURREY GU15 3YT
Great Britain
18.1 REACH
REACH is an EC Directive for the
registration, evaluation, authorisation and
restriction of chemicals.
Information on compliance with the
REACH Directive (EC) No. 1907/2006 is
available from www.stihl.com/reach.
Fault:
Engine not starting
Possible cause:
–Motorstop lever not pressed
–No fuel in tank; blocked fuel line
– Scarifying unit not in transport position
–Inferior, dirty or old fuel in tank
–Dirty air filter
–Spark plug socket detached from spark
plug; ignition lead not properly fastened
to socket
–Dirty or damaged spark plug; incorrect
electrode gap
Remedy:
–Press motorstop lever to handlebar and
hold (10.1)
–Top up fuel; clean fuel line (7.3),
(@), ()
–Place scarifying unit in transport
position (7.5)
18. Technical specifications
RL 540.0
Serial number 6290
Motor, design 4-stroke com-
bustion engine
Type Kohler HD675
Nominal output at
nominal speed
2,2 - 2800
kW - rpm
Displacement 149 ccm
Fuel tank 1,4 l
Starter Rope start
Scarifying device 14 fixed vertical
blades
Scarifying blade
drive Permanent
Engine output speed 2800 rpm
Working width 38 cm
Working depth 6 levels, adjust-
ment range
25 mm
Wheel diameter
(front) 180 mm
Wheel diameter
(rear) 180 mm
Length 131 cm
Width 54 cm
Height 111 cm
Weight 33 kg
Sound emissions:
In accordance with Directive 2000/14/EC:
Guaranteed sound
power level L
WAd
94 dB(A)
In accordance with Directive 2006/42/EC:
Sound pressure level
at workplace L
pA
81 dB(A)
Uncertainty K
pA
3dB(A)
Hand-arm vibrations:
Specified vibration characteristic in
accordance with EN 12096:
Measured value a
hw
4,12 m/sec
2
Uncertainty K
hw
2,06 m/sec
2
Measurement in accordance with
EN 20643
19. Troubleshooting
If necessary, contact a specialist
dealer; STIHL recommends STIHL
specialist dealers.
@See engine instruction manual.

0478 670 9907 C - EN
42
– Always use fresh, good quality fuel,
unleaded petrol; clean carburettor (@),
()
–Clean air filter (@), ()
–Connect spark plug socket; check
connection between ignition lead and
socket (@), ()
– Clean or replace spark plug; adjust
electrode gap (@), ()
Fault:
Starting problems or deteriorating engine
power
Possible cause:
–Scarifying unit not in transport position
–Blocked scarifier housing
–Mowing at an excessive working depth
or excessively fast pushing speed
–Water in fuel tank and carburettor;
blocked carburettor
–Contaminated fuel tank
–Dirty air filter
–Dirty spark plug
Remedy:
–Place scarifying unit in transport
position (7.5)
–Clean scarifier housing (detach spark
plug socket!) (11.2)
– Set smaller working depth or reduce
pushing speed (7.6)
–Empty fuel tank, clean fuel line and
carburettor (@), ()
–Clean fuel tank (@), ()
–Clean air filter (@), ()
–Clean spark plug (@), ()
Fault:
Engine overheating
Possible cause:
–Oil level in engine too low
–Dirty cooling ribs
Remedy:
–Check oil level and change engine oil if
necessary (7.3)
–Clean cooling ribs(11.2)
Fault:
Excessive vibration during operation
Possible cause:
–Defective scarifying unit
–Loose engine mounting
Remedy:
–Check blades, blade shaft, spacer
bushings, fastening and bearings of
scarifying unit and repair if necessary
(11.3), ()
–Tighten engine mounts ()
Fault:
Poor working results
Possible cause:
–Blades set too deep (bare patches, high
grass content in scarified material)
–Blade set too shallow (little or no lawn
thatch is removed)
–Blades have reached wear limit
–V-belt defective, worn or insufficiently
tensioned
Remedy:
–Reduce working depth (7.6)
–Increase working depth (7.6)
–Replace blades (11.3), ()
–Replace V-belt ()
Fault:
Blades not turning freely
Possible cause:
–V-belt defective
–Scarifying unit defective
Remedy:
–Replace V-belt ()
–Repair scarifying unit (11.3), ()
Fault:
Scarifying unit cannot be raised or lowered
Possible cause:
–Cable defective or detached
Remedy:
–Replace or repair cable ()
Fault:
Working depth cannot be set
Possible cause:
–Scarifying unit in operating position
–Rotary handle or adjustment element
defective
Remedy:
–Place scarifying unit in transport
position (7.5)
–Repair rotary handle or adjustment
element ()

43
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20.1 Handover confirmation
20.2 Service confirmation
Please hand this instruction manual
to your STIHL specialist dealer in
the case of maintenance operations.
He will confirm the service operations
performed in the pre-printed boxes.
20. Service schedule
Service performed on
Next service date
15