Makita BHP343 Instruction Manual

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Contents

Makita BHP343 Instruction Manual Manual pdf 7 page image

7ASSEMBLYCAUTION:• Always be sure that the tool is switched off and thebattery cartridge is removed before carrying outany work on the tool.Installing or removing driver bit or drill bit1009088Turn the sleeve counterclockwise to open the chuckjaws. Place the bit in the chuck as far as it will go. Turnthe sleeve clockwise to tighten the chuck.To remove the bit, turn the sleeve counterclockwise.OPERATIONHammer drilling operationCAUTION:• There is a tremendous and sudden twisting forceexerted on the tool/bit at the time of holebreak-through, when the hole becomes cloggedwith chips and particles, or when strikingreinforcing rods embedded in the concrete.First, turn the action mode changing ring so that thearrow on the tool body points to the marking. Theadjusting ring can be aligned in any torque levels for thisoperation.Be sure to use a tungsten-carbide tipped bit.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 atan idle, then remove the bit partially from the hole. Byrepeating this several times, the hole will be cleaned outand normal drilling may be resumed.Blow-out bulb (optional accessory)1002449After drilling the hole, use the blow-out bulb to clean thedust out of the hole.Screwdriving operation009085First, turn the action mode changing ring so that thearrow on the tool body points to the marking. Adjustthe adjusting ring to the proper torque level for your work.Then proceed as follows.Place the point of the driver bit in the screw head andapply pressure to the tool. Start the tool slowly and thenincrease the speed gradually. Release the switch triggeras soon as the clutch cuts in.CAUTION:• Make sure that the driver bit is inserted straight inthe screw head, or the screw and/or bit may bedamaged.NOTE:• When driving wood screws, predrill pilot holes tomake driving easier and to prevent splitting of theworkpiece. See the chart.Nominal diameter of wood screw(mm)Recommended size of pilot hole(mm)3.1 2.0 - 2.23.5 2.2 - 2.53.8 2.5 - 2.84.5 2.9 - 3.24.8 3.1 - 3.45.1 3.3 - 3.65.5 3.7 - 3.95.8 4.0 - 4.26.1 4.2 - 4.40064211. Blow-out bulb1. Sleeve

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Makita BHP343 Instruction Manual

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