Makita DUC252 Instruction Manual

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Makita DUC252 Instruction Manual Manual pdf 12 page image

12Adjusting the chain lubricationFig.6You can adjust the oil pump feed rate with the adjustingscrew. The amount of oil can be adjusted using theuniversal wrench.Carabiner (rope attachment point)Fig.7Carabiner (Rope attachment point) is for use of toolhanging. Before using carabiner, pull it out and tie it witha rope.ASSEMBLYCAUTION:• Always be sure that the tool is switched off and thebattery cartridge is removed before carrying outany work on the tool.Removing or installing saw chainCAUTION:• Always wear gloves when installing or removingthe saw chain.• The saw chain and the guide bar are still hot justafter the operation. Let them cool down enoughbefore carrying out any work on the tool.To remove the saw chain, perform the following steps:1. Press and fully open the lever until it stops.Fig.82. Turn the adjusting dial to "-" direction to releasethe saw chain tension.Fig.93. Turn the lever counterclockwise to loosen thesprocket cover until it comes off.4. Remove the sprocket cover.5. Remove the saw chain and guide bar from thechain saw.To install the saw chain, perform the following steps:6. Make sure the direction of the chain. The arrowmark on the chain shows the direction of thechain.Fig.107. Fit in one end of the saw chain on the top of theguide bar and the other end of it around thesprocket.8. Rest the guide bar in place on the chain saw.9. Turn the adjusting dial to "-" direction to slide theadjusting pin in the direction of arrow.Fig.1110. Place the sprocket cover on the chain saw so thatthe adjusting pin is positioned in a small hole inthe guide bar.Fig.1211. Turn the lever clockwise fully and a quarter turnback to keep looseness for adjusting chaintension.12. Turn the adjusting dial, and adjust the chaintension.13. Turn the lever clockwise to secure the sprocketcover.Fig.1314. Press and return the lever to its original position.Adjusting saw chain tensionThe saw chain may become loose after many hours ofuse. From time to time check the saw chain tensionbefore use.1. Press and fully open the lever until it clicks. Turnit counterclockwise a little to loosen sprocketcover lightly.Fig.142. Lift up the guide bar tip slightly.Fig.153. Turn the adjusting dial to adjust the saw chaintension. Tighten the saw chain until the lower sideof the saw chain fits in the guide bar rail (seecircle in the figure).4. Keep holding the guide bar lightly and tighten thesprocket cover after adjusting the chain tension.Make sure that the saw chain does not loose atlower side.5. Press and return the lever to its original position.Fig.16Make sure the saw chain fits snugly against the lowerside of the bar.CAUTION:• Do not tighten the saw chain too much.Excessively high tension of saw chain may causebreakage of saw chain, wear of the guide bar andbreakage of the adjusting dial.• A chain which is too loose can jump off the bar,and therefore presents an accident risk.• Carry out the procedure of installing or removingsaw chain in a clean place free from sawdust andthe like.Spike bumper (optional accessory)Fig.17To install spike bumper, perform the following steps:1. Remove the sprocket cover, saw chain and guidebar as described in this instruction manual.2. Fit the holes of spike bumper along with the holeson the chainsaw.3. Tighten them firmly with screws.