Makita HM1200 Instruction Manual

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Makita HM1200 Instruction Manual Manual pdf 5 page image

5position.Installing or removing bull point or other bits(cold chisel, etc.)CAUTION:Always be sure that the tool is switched off andunplugged before installing or removing the bit.For HM1200Fig.3Pivot the tool retainer to the side. (If it is difficult to movethe tool retainer with your thumbs, tap it with a hammer.)Insert the bit into the tool barrel as far as it will go.Return the tool retainer to its original position to securethe bit.To remove the bit, follow the installation procedure inreverse.For HM1200B & HM1200KFig.4Pull out and turn the tool retainer 180 degrees (1/2 turn).Then insert the bit into the tool holder with the notchedportion on the bit facing back toward the tool retainer.Then pull out and turn back the tool retainer 180 degreesto secure the bit. Try to pull the bit out of the tool holderto make sure the retained bit before use.CAUTION:Never use B-type shank bits. They can cause damage tothe tool. (For HM1200B)Fig.5OPERATIONChipping/Scaling/DemolitionHold 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.Replacing carbon brushesFig.6When the resin insulating tip inside the carbon brush isexposed to contact the commutator, it will automaticallyshut off the motor. When this occurs, both carbonbrushes should be replaced. Keep the carbon brushesclean and free to slip in the holders. Both carbonbrushes should be replaced at the same time. Use onlyidentical carbon brushes.Use a hex wrench to remove the rear cover.Fig.7Use a screwdriver to remove the brush holder caps.Take out the worn carbon brushes, insert the new onesand secure the brush holder caps.Fig.8LubricationFig.9Fig.10This tool requires no hourly or daily lubrication becauseit has a grease-packed lubrication system. Lubricate thetool every time the carbon brushes are replaced.Run the tool for several minutes to warm it up. Switch offand unplug the tool. Remove the crank cap using aMakita lock nut wrench 35 (optional accessory). Rest thetool on the table with the bit end pointing upwards. Thiswill allow the old grease to collect inside the crankhousing.Wipe out the old grease inside and replace with a freshgrease (30 g). Use only Makita genuine grease (optionalaccessory). Filling with more than the specified amountof grease (approx. 30 g) can cause faulty hammeringaction or tool failure. Fill only with the specified amountof grease. Reinstall the crank cap and tighten with thelock nut wrench. Do not tighten the crank capexcessively. It is made of resin and is subject tobreakage.To maintain product SAFETY and RELIABILITY, repairs,any other maintenance or adjustment should beperformed by Makita Authorized Service Centers,always using Makita replacement parts.ACCESSORIESCAUTION:• These accessories or attachments arerecommended for use with your Makita toolspecified in this manual. The use of any otheraccessories or attachments might present a risk ofinjury to persons. Only use accessory orattachment for its stated purpose.If you need any assistance for more details regardingthese accessories, ask your local Makita Service Center.• Bull point• Cold chisel• Scaling chisel• Grooving chisel• Clay spade• Rammer• Safety goggles• Bushing tool• Hammer grease• Plastic carrying case