Stihl FS 490 C-M Instruction Manual - Page 47

Maintenance and Care The following intervals apply for normal operating conditions. The specified intervals must be shortened accordingly when working for longer than normal or under difficult cutting conditions (extensive dust, etc.). English Before starting work At the end of work and/or daily Whenever tank is refilled Weekly Monthly Annually If faulty If damaged As required Complete machine Control handle Air filter, paper filter Air filter, plastic fabric filter Fuel tank Manual fuel pump (if present) Fuel pickup body in fuel tank Engine idle speed Spark plug Intake port for cooling air Cylinder fins Visual inspection (safe condition, leaks) X X Clean X Replace any damaged parts X Function test X X Visual inspection Replace1) Visual inspection Clean replace Clean check X Have repaired by a specialist dealer2) Check2) Replace2) Check, cutting attachment must not turn X X If the cutting attachment turns when the engine is idling, have machine repaired by servicing dealer2) Adjust electrode gap Replace after every 100 hours of operation Visual inspection X Clean Clean2) FS 460 C-M, FS 460 C-M L, FS 490 C-M, FS 490 C-M L X X X X X X X X X X X X X X X X X X 45