Makita DCO140 Instruction Manual

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8 ENGLISH123► 1. Collet cone 2. Bit 3. Collet nutTo change the collet cone, loosen the collet nut andremove. Remove the installed collet cone and replacewith desired collet cone. Reinstall collet nut.OPERATIONCAUTION:• Avoid forcing the bit to bend or twist. It may snap.• Before turning the tool on, make sure the bit andcollet nut are securely tightened.Hold the tool securely with the bit pointing in a safedirection not contacting any surface. Turn the tool onand wait until the tool reaches full speed.When using the drywall guide bit into a drywall, carefully insertthe bit straight until the shoe base contacts the material fully.Move the tool slowly with a constant pressure in aclockwise direction to make the cut.When cutting straight line, clamp a straight board firmlyto the material and use it as a guide. Move the tool inthe direction of the arrow with the shoe base flush withthe side of the guide board.When the cut is complete, turn the tool off and wait forthe bit to stop rotating and then carefully remove it fromthe material.NOTE:• When using this tool, the rotating action causesthe tool to pull. The less pressure applied to thetool causes less pull and provides a more accu-rate cut. Excessive pressure or fast cutting cancause the bit to dull or break premature.• When cutting drywall around outlet boxes, cut ina counterclockwise direction for ease of cut.• The standard bit included with this tool is for cut-ting drywall only. When cutting materials otherthan drywall, do not use the standard drywallguide bit.Using multipurpose bit (optionalaccessory)When using the multipurpose bit into the material, holdthe tool at approximately a 45 degree angle with theedge of the shoe base contacting the material.Bring the tool carefully to a straight position so the shoebase contacts the material fully.