Stihl Ms 201 Instruction Manual page 43

The following information applies under normal operating conditions. The specified intervals must be
shortened accordingly when working for longer than normal each day or under difficult conditions
(extensive dust, highly resinous lumber, lumber from tropical trees, etc.). If the machine is only used
occasionally, the intervals can be extended accordingly.
Cooling air intake slits
Cylinder fins
Carburetor
Spark plug
All accessible screws, nuts and bolts (not adjusting
2)
screws)
Spark arresting screen (present only in some
countries)
Chain catcher
Exhaust bore
Safety information sticker
1)
STIHL recommends STIHL servicing dealers
2)
During initial use of professional chain saws (with a power output of 3.4 kW or more), tighten the cylinder block screws after 10 to 20 hours of operation
MS 201, MS 201 C
clean
clean
Check idle adjustment – chain must not rotate
Setting the idle speed
adjust electrode gap
replace after 100 hours' operation
retighten
1)
check
1)
clean or replace if necessary
check
replace
decarbonize after 139 hours of operation, subse-
quently after every 150 hours of operation
replace
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