Stihl 017 Instruction Manual - Page 44
Checking and Replacing, Chain Sprocket, Storing the Machine
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Checking and Replacing Chain Sprocket Storing the Machine Replace the chain sprocket after using two Oilomatic chains - or even sooner if the wear marks on the sprocket are deeper than approx. 0.5 mm (1/64") since this would reduce the life of the chain. Check wear marks: - on teeth of spur sprockets. You can use gauge * 0000 893 4101 to check the depth of the wear marks on spur and rim sprockets. It is best to use two chains in rotation with one sprocket. * Special accessory 42 143BA042 KN K Before removing chain sprocket Remove chain sprocket cover, chain and guide bar. Disengage the chain brake: Pull hand guard toward front handle. • Use a screwdriver to remove the E-clip. • Pull washer, spur sprocket and needle cage off the crankshaft. Clean the crankshaft stub and needle cage, and lubricate with STIHL grease (tube 0781 120 1111). • Reassemble with new spur sprocket After fitting the clutch drum, rotate it about one half turn to engage oil pump drive. Refit washer and E-clip on the crankshaft. Use only original STIHL chain sprockets to ensure correct operation of the chain brake. For periods of about 3 months or longer: • Drain and clean the fuel tank in a well ventilated area. • Run engine until carburetor is dry this helps prevent the carburetor diaphragms sticking together. • Remove the saw chain and guide bar, clean them and protect with corrosion inhibiting oil. • Thoroughly clean the machine pay special attention to the cylinder fins and air filter. • If you use a biological chain and bar lubricant, e.g. STIHL Bioplus, completely fill the chain oil tank. • Store the machine in a dry and high or locked location - out of the reach of children and other unauthorized persons. 017, 018