Stihl MS 193 C-E Product Instruction Manual - Page 51

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 Anti-vibration elements Check X Have them replaced by a servicing dealer1) Air intake on fan housing Clean X X Cylinder fins Clean X X Carburetor Check idle adjustment - saw chain must not rotate X X Set the idle speed, have the chain saw repaired by a servicing dealer1) Spark plug Adjust electrode gap Replace after 100 hours of operation All accessible screws, nuts and bolts (not adjusting screws) Tighten2) Have checked by a specialist dealer1) Spark arresting screen in muffler Have cleaned by a specialist dealer, or replaced if necessary1) Check X Chain catcher Replace Exhaust bore Decarbonise after 139 hours of operation, subsequently after every 150 hours of operation Safety information label Replace X X X X X X X X X X 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 193 C 49