Makita HR4001C Instruction Manual

Also see for HR4001C: Instruction manual Instruction manual Parts Breakdown Instruction manual Instruction manual

Contents

9Depth gauge1 2006323The depth gauge is convenient for drilling holes ofuniform depth. Loosen the clamp screw and adjust thedepth gauge to the desired depth. After adjusting, tightenthe clamp screw firmly.NOTE:• The depth gauge cannot be used at the positionwhere the depth gauge strikes against the gearhousing/motor housing.OPERATIONHammer drilling operation006324Set the change lever to the symbol.Position the bit at the desired location for the hole, thenpull the switch trigger. Do not force the tool. Lightpressure gives best results. Keep the tool in position andprevent it from slipping away from the hole.Do not apply more pressure when the hole becomesclogged with chips or particles. Instead, run the tool at anidle, then remove the bit partially from the hole. Byrepeating this several times, the hole will be cleaned outand normal drilling may be resumed.CAUTION:• When the bit begins to break through concrete or ifthe bit strikes reinforcing rods embedded inconcrete, the tool may react dangerously. Maintaingood balance and safe footing while holding thetool firmly with both hands to prevent dangerousreaction.Blow-out bulb (optional accessory)1002449After drilling the hole, use the blow-out bulb to clean thedust out of the hole.Chipping/Scaling/Demolition006325Set the change lever to the symbol.Hold the tool firmly with both hands. Turn the tool on andapply slight pressure on the tool so that the tool will notbounce around, uncontrolled. Pressing very hard on thetool will not increase the efficiency.MAINTENANCECAUTION:• Always be sure that the tool is switched off andunplugged before attempting to perform inspectionor maintenance.• Never use gasoline, benzine, thinner, alcohol or thelike. Discoloration, deformation or cracks mayresult.LubricationCAUTION:• This servicing should be performed by MakitaAuthorized or Factory Service Centers only.This tool requires no hourly or daily lubrication because ithas a grease-packed lubrication system. Lubricate thetool every time the carbon brushes are replaced.1. Blow-out bulb1. Depth gauge2. Clamp screw

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