Stihl MS 261 C-M Instruction Manual page 15

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.
MS 261 C-M
Maintenance and repairs
The machine must be serviced regularly.
Do not attempt any maintenance or
repair work not described in the
Instruction Manual. All other work should
be carried out by a servicing dealer.
STIHL recommends that maintenance
and repair work be carried out only by
authorized STIHL dealers. STIHL
dealers receive regular training and are
supplied with technical information.
Use only high-quality spare parts.
Otherwise, there may be a risk of
accidents or damage to the machine.
Contact a servicing dealer if in doubt.
STIHL recommends the use of genuine
STIHL spare parts. Such parts have
been optimized for the machine and the
user's requirements.
Before starting any maintenance or
repair work and before cleaning the
machine, always stop the engine – risk
of injury! – Exception: adjustment of
carburetor and idle speed.
Do not turn the engine over on the
starter with the spark plug boot removed
or the spark plug unscrewed – risk of fire
due to ignition outside the cylinder!
Do not service or store the machine near
a naked flame – risk of fire due to the
fuel.
Check fuel cap regularly for tightness.
Use only spark plugs that are in perfect
condition and have been approved by
STIHL – see "Specifications".
Inspect ignition lead (insulation in good
condition, secure connection).
Check that the muffler is in perfect
working condition.
Do not use the machine if the muffler is
damaged or missing – risk of fire! –
Hearing damage!
Never touch a hot muffler – risk of burns!
The condition of the antivibration
elements influences vibration behavior –
inspect antivibration elements
periodically.
Inspect chain catcher – replace if
damaged.
Switch off the engine
to check the chain tension
–
to retension the chain
–
to change chains
–
for remedying malfunctions
–
Observe sharpening instructions – for
safe and proper handling, always keep
the chain and guide bar in flawless
condition. Keep the chain properly
sharpened, tensioned and well
lubricated.
Change chain, guide bar and chain
sprocket in due time.
Check that the clutch drum is in perfect
working condition.
Always store fuel and chain lubricant
only in the specified type of containers
and ensure they are correctly labeled.
English
13