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Фрагмент инструкции
Recommended idling speed: 2 700 rpm. Contact your servicing dealer, if the idle speed setting cannot be adjusted so that the chain stops. Do not use the saw until it has been properly adjusted or repaired. Fine adjustment • When the saw has been ”run-in” the carburetor should be finely adjusted. The fine adjustment should be carried out by qualified person. First adjust the L-jet, then the idling screw T and then the H-jet. Conditions • Before any adjustments are made the air filter should be clean and the cylinder cowling fitted. Adjusting the carburetor while a dirty air filter is in use will result in a leaner mixture when the filter is finally cleaned. This can give rise to serious engine damage. • Carefully turn the L and H needle to the mid point. • Do not attempt to adjust the needles beyond the stops as damage can occur. • Now start the saw according to the starting instructions and run it warm for 10 minutes. NOTE! If the chain rotates the T screw should be turned counter-clockwise until the chain stops. • Place the saw on a flat surface so that the bar points away from you and so that the bar and chain do not come into contact with the surface or other objects. Low speed needle L Turn the low speed needle L clockwise until the stop. If the engine has bad acceleration or erratic idling, turn the L needle counter-clockwise until good idling and acceleration. NOTE! If the chain rotates in the idling position, turn the idling speed screw counter-clockwise until the chain stops. Final setting of the idling speed T Adjust the idling speed with the screw T. If it is necessary to readjust, first turn the idle speed adjusting screw T clockwise, until the chain starts to rotate. Then turn, counter-clockwise until the chain stops. A correctly adjusted idle speed setting occurs when the engine runs smoothly in every position. It should also be good margin to the rpm when the chain starts to rotate. Contact your servicing dealer, if the idle speed setting cannot be adjusted so that the chain stops. Do not use the saw until it has been properly adjusted or repaired. High speed needle H The high speed needle H influences the power of the saw. A too lean adjusted high speed needle H (high speed needle H closed too much) gives overrevs and damages the engine. Turn the high speed needle H counterclockwise until the stop. If the engine runs roughly, turn the high speed needle slowly the minimum amount clockwise until the engine runs smoothly. The high speed needle H is correctly set when the saw ”4cycles” a little. If the saw ”whistles” the setting is too lean. If there is too much exhaust gas at the same time as the saw ”4cycles” much, the setting is too rich. Turn the high speed needle H until the setting sounds correct. NOTE! For optimum setting of the carburetor, contact a qualified servicing dealer who has a revolution counter at his disposal. H Correctly adjusted carburetor A correctly adjusted carburetor means that the saw accelerates without hesitation and the saw 4-cycles a little at max speed. Furthermore, the chain must not rotate at idling. A too lean adjusted low speed needle L may cause starting difficulties and bad acceleration. A too lean adjusted high speed needle H gives lower power=less capacity, bad acceleration and/or damage to the engine. A too rich adjustment of the two speed needles L and H gives acceleration problems or too low working speed. English – 29 30 – English Starter device WARNING! • When the recoil spring is assembled in the starter housing, it is in tensioned position and can when treated carelessly, pop out and cause injuries. • Always be careful, when changing the recoil spring or the starter cord. Always wear safety goggles for eye protection. MAINTENANCE Changing a broken or worn starter cord • Loosen the screws, that hold the starter device against the crankcase and remove the starter device. • Pull out the cord approx. 30 cm and lift it up into the notch in the pulley. Zero-set the recoil spring by letting the pulley rotate slowly backwards. Undo the screw in the centre of the pulley and remove the pulley. • Insert and fasten a new starter cord in the pulley. Wind approx. 3 turns of the starter cord on to the pulley. Assemble the starter pulley against the recoil spring, so the end of the spring engages to the pulley. Fit the screw in the centre of the pulley. Carry the starter cord through the hole in the starter housing and the starter handle. Make a knot on the starter cord. Tensioning the recoil spring • Lift the starter cord up in the notch on the starter pulley and turn the starter pulley 2 turns clockwise. NOTE! Check that the starter pulley can be turned at least half a turn, when the starter cord is entirely pulled out. Starter device assembly • Assemble the starter device, by pulling the starter cord out first, then place the starter against the crankcase. Then slowly release the starter cord so that the pulley engages with the pawls. • Assemble and tighten the sc...