Makita HR4002, Technical Information

Page 1: ...lation Net weight kg lbs Power supply cord m ft 40 1 9 16 Max TCT bit diameter 105 4 1 8 Max Core bit diameter Capacities mm Optional accessories TCT bits Core bits Bull points Cold chisels Scaling ch...

Page 2: ...isassembling Motor housing from Crank housing Cylinder Extractor 1R214 Taper Sleeve Fitting Fluoride rings on Impact bolt of Rotary hammers 1R230 1 4 Hex Shank Bit M6 Disassembling Barrel complete fro...

Page 3: ...ring 25 from Tool holder Remove Tool retainer while pressing down Spring guide Disassemble Spring guide 2 pcs and Compression spring 48 from Tool holder Remove Flat washer 28 Chuck cover and Spacer fr...

Page 4: ...an be seen Fluoride ring 25 is worn out Fig 11 Be sure to replace not only Fluoride ring 25 but also O ring 20 and X ring 18 3 Check whether there has been dust in the Tool holder If yes be sure to cl...

Page 5: ...To fit it on Impact bolt insert into 1R214 as illustrated in Fig 15 2 After about 60 seconds pull off Impact bolt from 1R214 Now the Fluoride ring fits on Impact bolt Fig 16 3 Assemble X ring 18 to Im...

Page 6: ...Urethane ring 45 to Tool holder from its Bit installing side Fig 18 Fig 18 Fig 19 6 Assemble Oil seal 32 to Barrel complete on the Release cover side Refer to Fig 14 7 Mount Tool holder to Barrel comp...

Page 7: ...23 Ring 17 Ring 17 Ring 17 Ring 33 Impact bolt Impact bolt Ring 33 Face the Brim portion to Rubber ring 17 side to accept Compression spring with its Brim Face the Metal portion to Crank housing Side...

Page 8: ...e Hammer mode Link plate guide Link plate Seal ring comes with Crank cap cover complete which is fitted to the Bottom of Crank cap cover complete Link plate Link plate guide Bottom View View from Eye...

Page 9: ...ig 29 Ring spring 31 Ring 33 Cylinder 28 5 Cylinder 28 5 Ring 33 1R213 Cylinder 28 5 Cylinder 28 5 1R350 1R350 Grip Cylinder 28 5 by fitting these Pin portions with the Holes of Cylinder 28 5 passing...

Page 10: ...tic hammer to assemble it to Crank housing complete At the same time Piston has to be inside of the assembled Cylinder Fig 30 4 Insert Straight bevel gear 25 over Cylinder 28 5 and engage it with Stra...

Page 11: ...sleeve guide Lock sleeves s tail Fig 32 Fig 33 7 Insert Lock sleeve with Lock sleeve guide into Crank housing complete Fig 32 8 Assemble Compression spring 7 and Link plate to Link plate guide Refer...

Page 12: ...ar cover 1R263 Motor housing Tapping screw 4x18 2 pcs Remove the Spring from Carbon brush And pull out carbon brush to disconnect it from Commutator No need to remove Carbon brush from Brush holder un...

Page 13: ...d from Torque limiter complete Fig 40 Note Do not forget to assemble Baffle plate Refer to left Fig 37 3 6 Torque Limiter Section Gear housing complete Gear housing complete is removed together with S...

Page 14: ...of Torque limiter complete Ball bearing 6904LLU Conical compression spring 19 2 2 Mount Driving flange while fitting these projections with the Groove of Torque limiter s Shaft 3 Face small Loop side...

Page 15: ...f 1R022 under Ball bearing 6004LLU Retaining ring S 20 1R269 Crank shaft 1 Disassemble Crank shaft as per the illustration from Fig 44 to Fig 49 Flat washer 10 Remove Flat washer 10 from Crank shaft A...

Page 16: ...ig 50 2 Now Power supply cord and Switch can be replaced Fig 50 After removing Tapping screw bind 4x18 1 pc insert a slotted screwdriver into the Gap between Handle and Handle cover at the Cord guard...

Page 17: ...holder unit to Motor housing Refer to Figs 53 54 55 56 57 and 58 Tapping screw bind 5x55 2 pcs Tapping screw bind 4x18 4 pcs Face the Connector portion to the Handle assembling side With these four R...

Page 18: ...MBLY ASSEMBLY 3 10 Fastening Torque of Screw and Bolt Fasten the specific bolts to the appropriate fastening Torque as shown below Crank housing complete Barrel complete Gear housing complete Motor ho...

Page 19: ...h Noise Suppressor and Sponge are not used for some Countries This Lead wire is white for some Countries This Lead wire is black for some Countries Black Power Supply Cord Brush Holder Unit Lead Unit...

Page 20: ...d Unit Wiring in Handle Switch The Lead wires for connecting to Switch have to be guided between Rib A and Rib B The Lead wires for connecting to Switch have to be fixed with this Lead wire holder Noi...