Winter Operation - Stihl MS 241 C-M Manual De Instrucciones

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Releasing the chain brake
Pull the hand guard back toward the
N
front handle.
NOTICE
Always disengage chain brake before
accelerating engine and before starting
cutting work. The only exception to this
rule is when you check operation of the
chain brake.
High revs with the chain brake engaged
(chain locked) will quickly damage the
powerhead and chain drive (clutch,
chain brake).
The chain brake is designed to be
activated also by the inertia of the front
hand guard
if the forces are sufficiently high. The
hand guard is accelerated toward the
bar nose - even if your left hand is not
behind the hand guard, e.g. during a
MS 241 C-M
felling cut. The chain brake will operate
only if it has been properly maintained
and the hand guard has not been
modified in any way.
Check operation of chain brake
Before starting work: Run engine at idle
speed, engage the chain brake (push
hand guard toward bar nose).
Accelerate up to full throttle for no more
than 3 seconds – the chain must not
rotate. The hand guard must be free
from dirt and move freely.
Chain brake maintenance
The chain brake is subject to normal
wear. It is necessary to have it serviced
and maintained regularly by trained
personnel, such as your STIHL servicing
dealer, at the following intervals:
Full-time usage:
Part-time usage:
Occasional usage:

Winter Operation

Pre-heating carburetor
Remove the shroud – see "Shroud"
N
At temperatures under +50 °F (+10 °C)
Using a screwdriver, pry the shutter
N
every 3
out of the s (summer operation)
months
position
every 6
months
every 12
months
Place the shutter with the opening in
N
the direction of the chain saw in
the r position (winter operation) –
shutter must audibly snap into place
Fit the shroud – see "Shroud"
N
English
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