Stihl 561 C-M, Instruction Manual, Page: 9 / 28

► Connect the spark plug boot and press it
down firmly.
■ The trimmer can be damaged if it is run on a
fuel mixture consisting of unsuitable gasoline
or an unsuitable two-stroke engine oil or if an
incorrect mix ratio of gasoline and two-stroke
engine oil is used.
► Mix the fuel as described in this instruction
manual.
■ The mixture of gasoline and two-stroke engine
oil can separate if it is stored for a long period.
The trimmer can be damaged if it is used with
a fuel mix that has become separated.
► Before refueling the trimmer: Thoroughly mix
the fuel.
► Use a mixture of gasoline and two-stroke
engine oil that is not older than 30 days
(STIHL MotoMix: 2 years).
4.8 Working
WARNING
■ If the engine is not started properly, the user
may lose control of the trimmer. This may
result in serious injury to the user.
► Start the engine as described in this instruc‐
tion manual.
► If the cutting attachment is touching the
ground or objects: Do not start the engine.
■ If the start flap lever is in the position when
the engine is started, the engine speed is
higher than the idle speed and the cutting
attachment can rotate as soon as the engine
is running. This may result in serious injury to
the user.
► Do not touch the cutting attachment.
► Start the engine as described in this instruc‐
tion manual.
■ In certain situations, the user may no longer
be able to concentrate on their work. The user
can lose control of the trimmer, stumble or fall
and be seriously injured.
► Keep calm and plan your work.
► If light and visibility are poor: Do not use your
trimmer.
► Operate the trimmer alone.
► Keep the cutting attachment close to the
ground.
► Watch out for obstacles.
► Work standing on the ground and keep your
balance.
► If you start feeling fatigue: Take a break.If
you start feeling fatigue: Take a break.
■ Exhaust gas is produced when the engine is
running. Breathing in exhaust gas can have
toxic effects.Breathing in exhaust gas can
have toxic effects.
► Avoid inhaling exhaust gas.
► Operate the trimmer is a well ventilated loca‐
tion.
► In the event of nausea, headache, visual dis‐
turbances, problems with hearing or dizzi‐
ness: Stop work and seek medical advice.
■ The user’s ability to hear and assess noises is
restricted when wearing hearing protection
with the engine running.
► Keep calm and plan your work.
■ In case of working with the trimmer and the
start flap lever is in the position , the user
cannot work with the power brush in a control‐
led manner. This may result in serious injury to
the user.
► Check that the choke lever is in position
during operation.
► Start the engine as described in this instruc‐
tion manual.
■ The rotating cutting attachment can cut the
user. This may result in serious injury to the
user.
► Do not touch the rotating cutting attachment.
► If the cutting attachment is blocked by an
object: Shut off the engine. before clearing
the jam.
■ The machine can be damaged if you open the
throttle while the cutting attachment is blocked
by an object.
► Shut off the engine. before clearing the jam.
■ If the behavior of the trimmer changes during
operation or feels unusual, it may no longer be
in a safe condition. This may result in serious
injury to people and damage to property.
► Stop work and consult a STIHL servicing
dealer.
■ Trimmer vibrations may occur during opera‐
tion.
► Wear gloves.
► Take breaks.
► If signs of a circulatory disturbance occur:
Consult a doctor.
■ If the cutting attachment makes contact with a
foreign object during operation, the object or
parts of it may be thrown at high speed. Per‐
sons may be injured or property damaged.
► Remove foreign objects from the working
area.
■ If the rotating metal cutting attachment makes
contact with a hard object, sparks may occur
4 Safety Precautions English
0458-856-0121-A. VA0.B21. 9