Stihl MS 261 C-M Instruction Manual page 47

The following intervals apply to normal operating conditions only. If your daily work-
ing time is longer or operating conditions are difficult (very dusty work area, resin-
rich wood, tropical wood, etc.), shorten the specified intervals accordingly. If you only
use your power tool occasionally, extend the intervals accordingly.
Antivibration elements
Air inlet on fan housing
Cylinder fins
Carburetor
Spark plug
All accessible screws and nuts
Spark arresting screen in muffler
Chain catcher
Safety labels
1)
STIHL recommends an authorized STIHL servicing dealer.
2)
Firmly tighten down the cylinder base screws of professional saws (3.4 kW or more) after 10 to 20 hours of operation.
MS 261 C-M
Check
1)
Have replaced by servicing dealer
Clean
Clean
Check idle adjustment – chain must not
rotate
If the chain continues moving when the
engine is idling, have your saw checked
and repaired by your servicing dealer
Readjust electrode gap
Replace after every 100 hours of
operation
2)
Retighten
1)
Have checked by dealer
Have cleaned or replaced by dealer
Check
Replace
Replace
X
X
X
X X
1)
1)
X
X
X
X
X
X
English
X
X
X
X
X
X
X
X
X
45