Makita XCU07PT XCU07 Instruction Manual - Page 15

2. 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. Insert wedges into the back cut in time. WARNING: Do not cut right through the fibers under any circumstances. The tree will otherwise fall unchecked. NOTICE: Only plastic or aluminum wedges may be used to keep the back cut open. The use of iron wedges is prohibited. Carrying tool Before carrying the tool, always apply the chain brake and remove the battery cartridges from the tool. Then attach the guide bar cover. Also cover the battery cartridge with the battery cover. NOTICE: Never use gasoline, benzine, thinner, alcohol or the like. Discoloration, deformation or cracks may result. To maintain product SAFETY and RELIABILITY, repairs, any other maintenance or adjustment should be performed by Makita Authorized or Factory Service Centers, always using Makita replacement parts. Sharpening the saw chain Sharpen the saw chain when: • Mealy sawdust is produced when damp wood is cut; • The chain penetrates the wood with difficulty, even when heavy pressure is applied; • The cutting edge is obviously damaged; • The saw pulls to the left or right in the wood. (caused by uneven sharpening of the saw chain or damage to one side only) Sharpen the saw chain frequently but a little each time. Two or three strokes with a file are usually sufficient for routine resharpening. When the saw chain has been resharpened several times, have it sharpened in our authorized service center. Sharpening criteria: WARNING: An excessive distance between the cutting edge and depth gauge increases the risk of kickback. 2 1 2 1 1 2 ► 1 . Guide bar cover 2. Battery cover MAINTENANCE CAUTION: Always be sure that the tool is switched off and the battery cartridge is removed before attempting to perform inspection or maintenance. CAUTION: Always wear gloves when performing any inspection or maintenance. 3 1 ► 1 . Cutter length 2. Distance between cutting edge and depth gauge 3. Minimum cutter length (3 mm (1/8")) - All cutter length must be equal. Different cutter lengths prevent the saw chain from running smoothly and may cause the saw chain to break. - Do not sharpen the chain when the cutter length has reached 3 mm (1/8") or shorter. The chain must be replaced with new one. - The chip thickness is determined by the distance between the depth gauge (round nose) and the cutting edge. - The best cutting results are obtained with following distance between cutting edge and depth gauge. • Chain blade 90PX : 0.65 mm (0.025″) • Chain blade 91PX : 0.65 mm (0.025″) • Chain blade 25AP : 0.65 mm (0.025″) 15 ENGLISH