Stihl MS 201 T C-M Instruction Manual - Page 37

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. English before starting work at the end of work and/or daily whenever tank is refilled weekly monthly yearly if faulty if damaged as required Cooling air intake slits clean X Cylinder fins clean X X Check idle adjustment - chain must not rotate X X Carburetor Setting the idle speed X adjust electrode gap X Spark plug replace after 100 hours' operation All accessible screws, nuts and bolts (not adjusting screws)2) retighten Spark arresting screen (present only in some countries) check1) clean or replace if necessary1) X X X check X Chain catcher replace X Exhaust bore decarbonize after 139 hours of operation, subsequently after every 150 hours of operation X Safety information sticker replace X 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 T 35