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manual abstract
– Don’t fell trees when there is a strong wind. 1 Clear the tree base of interfering limbs and brush. Clean the work area from stones or other objects which could damage the chain. If the tree has large protruding roots, remove them before felling (see illustrations). 2 A) Cut a felling notch (A) of 45°on the side you want the tree to fall to a depth of about one third of the trunk diameter (d). Then make a felling cut (B) about 5 cm higher than the felling notch on the opposite side of the tree. Make sure that the felling cut does not go right through the trunk. A hinge (C) must always be left to provide control over the direction of the fall. B) Use wedges to control the moment and direction of the fall. 3 When the tree starts to fall, walk away along your pre- planned escape path. CUTTING FALLEN TRUNKS 4 A) Limbing thick branches. For limbing and bucking leave the lower limbs to support the log off the ground. B) Supported at one end only. Begin with a bottom cut made by the upper side of the bar (A); the depth of the cut should be about one third of the log diameter. Finnish with a top cut (B) meeting the first one. With this technique splitting, cracking can be avoided C) Supported at both ends. Begin with a top cut about one third of the log diameter. Then finish with a bottom cut (B) meeting the first one. this technique avoids the risk of pinching the bar in the log. D) If the log is supported along its whole length it may be cut normally from above. Take care not to touch the ground with the chain. • When working on a slope always stand on the uphill. • When cutting prepared timber, use clamps or chocks to secure work. • Use extreme caution when cutting small size brush and saplings which may catch the chain and pull you off balance. G. Carburettor adjustment We suggest carburetor adjustments are made by an author• L: The needle screw L governs the fuel flow at low speed ized servicing dealer. and also the acceleration from low to full speed. The carburetor has three adjustment screws: To set screw L: close screw L turning it clockwise without forcing. ENGLISH - 4 Then open screw 1 full turn (counterclockwise) . If acceleration is not smooth, open another 1/8 turn to increase fuel flow . • H: The needle screw H governs fuel flow at high speed (throttle valve fully open). To set hi speed screw H: close screw H turning it clockwise without forcing . Then open screw 1 full turn (counterclockwise) . If the engine speed is too high, open the screw about 1/8 turn (counterclockwise). Optimal adjustment is found between 1 and 1 1/4 turns. • I: The I (IDLE) screw controls the throttle opening to govern idle speed (2800 min-1) adjust as necessary. CAUTION: increased idle speed may cause chain movement. The carburetor is adjusted for normal operation during production. When considerable changes of altitude require a supplementary adjustment, contact an authorised service station which offers the latest in tools, parts and technical assistance. H. R...
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