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Resumen del manual
If the grip droops to one side: Increase spring tension by one additional turn. 46 021,023, 025 Checking and Replacing Chain Sprocket • When starter rope is fully extended it must be possible to rotate the rotor at least another half turn. if this is not the possible, the spring is over-tensioned and could break. • Take off one turn of the rope. • Fit the fan housing on the engine housing. • Set the Master Control lever to ©t Replacing a broken rewind spring • Lubricate the new spring with a few drops of non-resinous oil. • Remove the rope rotor- see "Replacing Starter Rope". • Remove the spring housing and parts of spring. • Fit the new spring housing -bottom plate must face upward -slip outer spring loop over lug. • Reinstall the rope rotor, tension the rewind spring, fit the fan housing and secure in position. If the spring pops out of its housing during installation: refit it in the counterclockwise direction, starting outside and working inward. 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: Left: on webs of rim sprockets Right: 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. ‘Special accessory It is best to use two chains in rotation with one sprocket. Before removing chain sprocket Remove chain sprocket cover, chain and guide bar. Disengage the chain brake: Pull hand guard toward front handle. 021,023, 025 47 Storing the Machine Spur sprocket • 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. Rim sprocket • Use a screwdriver to remove the E-clip. • Take off the washer and rim sprocket. • Examine splines on clutch drum -if wear marks are severe, fit a new clutch drum: • Pull clutch drum 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 rim sprocket and a new clutch drum, if necessary. • Fit rim sprocket with cavities facing outward. • Refit washer and E-clip on the crankshaft. Use only original STIHL clutch drums 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. 48 021,023, 025 Maintaining and Sharpening Saw Chain Correctly sharpened chain A properly sharpened chain slices through wood effortlessly and requires very little feed pressure. Do not work with a dull or damaged chain as it will increase the physical effort required, produce unsatisfactory results and a higher rate of wear. Clean and check your chain for cracks in the links and damaged rivets - replace any damaged or worn parts of the chain and match the new parts to the shape and size of the original parts. Important: It is absolutely imperative to comply with the angles and dimensions specified below. If the saw chain is incorrectly sharpened - and in particular if the depth gauge is set too low - there is a risk of increased kickback of the chainsaw, with resulting danger of injury. Select the appropriate sharpening tools for the chain pitch. See ‘Technical Data” for the permitted chain pitches. The chain pitch (e.g. 3/8) is marked on the depth gauge side of each cutter. Use only special saw chain files Other files have the wrong shape and cut. Select file diameter according to chain pitch - see table at the end of this chapter. You must observe certain angles when resharpening the chain cutters !689BA020 KN A= Filing angle B = Side plate angle Chain type Angle (°) _A B Rapid-Micro (RM) 30 85 Rapid-Super (RS) 30 60 Picco-Micro (PM/PMN) 30 85 Cutter shapes: Micro = Semi-chisel Super = Full chisel Specified angles A and B are obtained automatically if recommended files or sharpening tools and correct settings are used. Furthermore, the angles must be the same on all cutters. If angles are uneven: Chain wil...
Otros modelos de este manual:Benzo y sierras - 021 (5.76 mb)
Benzo y sierras - 025 (5.76 mb)