Stihl MS 261 C-M Instruction Manual page 37

31 Maintenance and Care
The following information applies in normal operat‐
ing conditions. The specified intervals must be
shortened accordingly when working for longer
than normal or under difficult cutting conditions
(extensive dust, highly resinous lumber, lumber
from tropical trees, etc.). If you only use the tool
occasionally, extend the intervals accordingly.
Guide bar
Chain sprocket
Air filter
Anti-vibration elements
Air intake on fan housing Clean
Cylinder fins
Carburetor
Spark plug
Accessible screws, nuts
and bolts
Spark arresting screen in
muffler
Chain catcher
Safety information label
1)
STIHL recommends STIHL dealers
2)
Firmly tighten down the cylinder base screws of chainsaws (3.4 kW or more) after 10 to 20 hours of
operation.
0458-153-8221-C
Checking the chain ten‐
sion
sharpen
Check (wear, damage)
Clean and turn over
Deburr
replace
check
Clean
replace
check
Have replaced by serv‐
1)
icing dealer
Clean
Check idle adjustment –
saw chain must not
rotate
If the saw chain contin‐
ues moving when the
engine is idling, have
your chainsaw checked
and repaired by your
1)
dealer
Adjust electrode gap
Replace after 100 hours
of operation
2)
Tighten
Check if installed
1)
Check or replace
check
replace
replace
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