MS 261 C-M
English
45
N
Release chain brake.
NOTICE
If the throttle trigger is released before
the chain saw has been fully calibrated,
calibration will be aborted. Calibration
has to be started again from the
beginning.
N
Fully depress throttle trigger and
hold it there.
NOTICE
If the throttle trigger is not fully
depressed during calibration, the chain
saw may not adjust correctly. The chain
saw may be damaged.
N
Fully depress throttle trigger and
hold it there.
N
Depress and hold down throttle
trigger for at least 30 seconds (B).
The engine accelerates and the saw
chain rotates. The chain saw is being
calibrated. The engine speed fluctuates
and increases perceptibly during
calibration.
If the engine stops:
N
try again to calibrate the chain saw.
If the engine repeatedly stops:
N
Engage chain brake.
N
Do not use the chain saw. Consult a
STIHL servicing dealer. The chain
saw has a fault.
As soon as the engine speed audibly
and perceptibly drops (C):
N
Release throttle trigger.
The engine idles. The chain saw is
calibrated and ready for use.
N
If engine performance deteriorates,
check the spark arresting screen in
the muffler
N
Let the muffler cool down
N
Unscrew the screw (1)
N
Pull out spark arresting screen (2)
N
Clean the dirty spark arresting
screen, replace if damaged or
heavily carbonized
N
Refit the spark arresting screen
N
Fit screw
If there is a loss of engine power, the
machine is difficult to start or runs poorly
at idle, first check the spark plug.
Install a new spark plug after
approximately 100 operating hours or
earlier if the electrodes are
eroded/corroded.
The wrong fuel mix (too much engine oil
in the gasoline), a dirty air filter and
unfavorable running conditions (mostly
at part throttle etc.) affect the condition
of the spark plug. These factors cause
deposits to form on the insulator nose,
which may degrade performance.
Removing the Spark Plug
N
Remove the shroud – see "Shroud".
N
Pull off the spark plug boot.
N
Clean away loose dirt from around
the spark plug.
Spark Arresting Screen in
Muffler
0001BA009 KN
2
1
Spark Plug
5902BA013 KN
Summary of Contents for MS 261 C-M
Page 2: ...Instruction Manual 1 61 Manual de instrucciones 62 128...
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