Stihl 056 Instruction Manual - Page 31

General Maintenance Oil Inspection Window To increase the service life of the tool and to assure troublefree operation few maintenance in regular intervals is necessary: At the end of each working day clean the machine from saw dust and dirt. Also clean guide bar, saw chain and air filter. Make sure that the cutting tool is in proper operation condition. Refill the fuel tank and store the tool in a dry place. If you let your chain saw sit idle for a longer period you should additionally protect the engine against corrosion. While stopping the engine inject preservative oil through the carburetor. To control the quantity of the chain lUbricating oil and to clean the oil hose and pick-up body an oil inspection window is installed in the crankcase behind the chain sprocket cover. You need not rinse the engine before starting again; just shake the fuel in the tank thorougly. If engine does not start immediately spray some gasoline over the air filter. After the break-in period of about 20-30 operating hours all screws and nuts of the tool except for the carburetor screws must be checked for tight seat and must be retightened. Loosen oil inspection window with combi wrench and when removing take care that the gasket is not damaged. Now by means of a hook the oil inspection window with pick-up body can be removed for cleaning. The electrode gap of the spark plug is 0.5 mm (0.02 in) and should be checked with a feeler gauge from time to time and adjusted if necessary. If electrodes of the spark plugs are badly burned replace spark plugs. Rinse fuel tank with clean gasoline every 50 operating hours. If necessary also clean strainer of the pick-up body. 29