Makita UC3551A UC3551A UC4051A Instruction Manual - Page 15

1 1. Felling direction 2. Danger zone 2 3. Escape route 3 3 2 006918 − Cut a scarf: The scarf determines the direction in which the tree will fall, and guides it. It is made on the side towards which the tree is to fall. Cut the scarf as close to the ground as possible. First make the horizontal cut to a depth of 1/5 -1/3 of the trunk diameter. Do not make the scarf too large. Then make the diagonal cut. − Cut any corrections to the scarf across its entire width. 006923 − Make the back cut a little higher than the base cut of the scarf. The back cut must be exactly horizontal. Leave approximately 1/10 of the trunk diameter between the back cut and the scarf. The wood fibers in the uncut trunk portion act as a hinge. Do not cut right through the fibers under any circumstances, as the tree will otherwise fall unchecked. Insert wedges into the back cut in time. − Only plastic or aluminum wedges may be used to keep the back cut open. The use of iron wedges is prohibited. − Stand to the side of the falling tree. Keep an area clear to the rear of the falling tree up to an angle of 45 ° either side of the tree axis (refer to the " felling area " figure). Pay attention to falling branches. − An escape path should be planned and cleared as necessary before cuts are started. The escape path should extend back and diagonally to the rear of the expected line of fall as illustrated in figure. 009202 MAINTENANCE CAUTION: • Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance. • Always wear gloves when performing any inspection or maintenance. • Never use gasoline, benzine, thinner, alcohol or the like. Discoloration, deformation or cracks may result. Carry out the maintenance work described below at regular intervals. Warranty claims will be accepted only if these operations have been performed regularly and properly. Only maintenance work described in this instruction manual may be performed by the user. Any other work must be carried out by Makita Authorized or Factory Service Centers. Cleaning the chain saw Clean the saw regularly with a clean rag. The handles, in particular, must be kept free of oil. Checking the plastic housing Carry out regular visual inspections of all parts of the housing. If any parts are damaged, have them repaired immediately and properly in Makita Authorized or Factory Service Centers. Sharpening the saw chain CAUTION: • Always withdraw the mains plug and wear safety gloves when performing work on the saw chain. 006924 15