User manual MAKITA 5012B

[. . . ] Chain Saw 300 mm (11-3/4") MODEL 5012B INSTRUCTION MANUAL DOUBLE INSULATION SPECIF1CAT I ON S Chain speed 1FPMl Guide bar length 300 mm 11 1-314") Saw chain Pitch 318" (9. 5 mm) Gauge 0. 050" 11. 27 mm) Overall length 560 mm 122") weight 5, 500 4. 3kg 19. 5 Ibs) * Manufacturer reserves the right to change specifications without notice. * Note: Specifications may differ from country to country. IMPORTANT SAFETY INSTRUCTIONS WARNING: WHEN USING AN ELECTRIC CHAIN SAW, BASIC SAFETY PRECAUTIONS SHOULD ALWAYS BE FOLLOWED TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, AND INJURY TO PERSONS, INCLUDING THE FOLLOWING: READ ALL INSTRUCTIONS. 1. Do not start cutting until you have a clear work area, secure footing, and a planned retreat path from the falling tree. Consider Work Area Environment Use extreme caution when cutting small size brush and saplings because the slender material may catch the saw chain and be whipped toward you or pull you off balance. [. . . ] Low-Kickback Chain - A chain that complies w i t h the kickback performance requirements of ANSI B175. 1 when tested on a representative sample of chain saws. Normal Cutting Position - Those positions assumed in performing the bucking and felling cuts. Notching Undercut -A notch cut in a tree that directs the tree's fall. Oiler Control - A system for oiling the guide bar and saw chain. Reduced Kickback Guide Bar - A guide bar which has been demonstrated t o reduce kickback significantly. Replacement Saw Chain - A chain that complies with the kickback performance requirements of ANSI 8175. 1 when tested with specific chain saws. It may not meet the ANSI performance requirements when used w i t h other saws. Saw Chain - A loop of chain having cutting teeth, that cut the wood, and that is driven by the motor and is supported by the guide bar. Spiked Bumper (Spike) - The pointed tooth or teeth for use when felling or bucking t o pivot the saw and maintain position while sawing. Switch - A device that when operated will complete or interrupt an electrical power circuit t o the motor of the chain saw. Lock-Off Button - A movable stop that prevents the unintentional operation of the switch until manually actuated. 7 Installing saw chain and guide bar CAUTION : Always be sure that the tool i s switched off and unplugged before installing saw chain and guide bar. Use the socket wrench to toosen the hex bolt holding the chain cover. 2 Fit one end of the chain over the sprocket and the other over the end of the guide bar. Keep the chain in the guide bar grooves. Install the guide bar so that the lower hole in the guide bar i s just over the adjusting pin. Install the chain cover and tighten the hex bolt only tight enough to hold the guide bar temporarily. Adjusting saw chain tension CAUTION : Always be sure that the tool i s switched off and unplugged before adjusting chain tension. Grasp the chain in the middle of the guide bar and lift up. The gap between the side link of the chain and the guide bar should be about 3 mm to 4 mm (1/8" - 5/32"). Fig. 5 8 If the gap is not about 3 mm to 4 mm (1/8" - 5/32"), adjust the chain tension. Use a screwdriver to turn the chain tension adjusting screw clockwise for more tension, or counterclockwise for less tension. When adjusting the chain tension, lift the end of the guide bar slightly. I I Fig. 6 After adjusting the chain tension, use the socket wrench to tighten the hex bolt s e w re1y . I 1 I Fig. 7 CAUTION : When breaking in a new chain, adjust the tension often, since i t tends t o 'stretch'. Hook When using an extension cord, secure i t t o the tool's cord with the hook provided. Attach the hook about 100-200 mm (4"8 " ) from the extension cord connector. This will help prevent unintentional disconnection. Power cord 1 I Cord connector I I Extension cord I Fig. 8 9 Switch action To prevent the trigger from being accidentally pulled, a lock-off button is provided as a safety feature. [. . . ] 2 To file the saw chain, push the file in the direction of the arrow. When pulling it back, be careful not to touch the cutters with the file. Fig. 25 After a saw chain has been filed two or three times, the "raker" (see Fig. As the cutters are filed, they lose some height due to their angled shape. [. . . ]