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Makita BHR243 (LXRH02*1) manual

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Table of contents for the manual

  • Page 1

    Models No. Description PRODUCT T ECHNICAL INFORMA TION C ONCEPT AND MAIN APPLICA TIONS S pecification S tandard equipment O ptional accessories P 1/ 25 BHR242 (LXRH01* 1 ), BHR243 (LXRH02* 1 ) Cordless Combination Hammer 24mm (15/16") Dimensions: mm (") W idth (W) Height (H) Length (L) 328(12-7/8) 353(13-7/8) 85 (3-3/8) 213 (8-3/8) The su[...]

  • Page 2

    [1] NECESSARY REPAIRING TOOLS Description Code No. Use for Retaining ring pliers ST-2N 1R003 remo v ing Ri ng spr i ng 19 fro m To ol ho l de r co mp lete/ To ol hol der gu i de complet e Retaining ring pliers ST-2 1R004 assembling Cam shaft Bearing setting plate 15.2 1R035 remo v ing / assembling Spiro lock washer 30 Gear extractor (large) 1R045 a[...]

  • Page 3

    [2] LUBRICATION Apply the following grease to protect parts and product from unusual abrasion. Fig. 1 I tem No . Description Portion to lubricate Lubricant See Fig. 3. A m oun t 3g a little a little a little 3g Compression spring 14 End to be fixed to the boss in Inner housing complete (See Fig. 3.) M ak ita gr ea se RB No .0 0 M ak ita gr ea se RB[...]

  • Page 4

    Put 16g Makita grease RB No 00 by using the space (designated by the black dot) to lubricate Swash bearing section and Cam shaft section. boss for fixing Compression spring 14 Inside view of Inner housing Fig. 2 Fig. 3 BHR242 BHR243 Item No. Description Portion to lubricate Lubricant Amount a little a little 2g Cross section around Swash bearing 10[...]

  • Page 5

    [3] DISASSEMBLY/ASSEMBLY [3] -1A. Bit holder section for BHR242 DISASSEMBLING for BHR242 R epair P 5 / 25 Chuck cover Chuck cover Chuck cover Cap 35 Groove of Tool holder complete Tool holder complete (1) Remove Cap 35. (2) Separate Ring spring 14 from the groove of Tool holder complete using 1R003 with 1R212. (F ig. 4 ) Washer 16 on Ring spring 15[...]

  • Page 6

    [3] DISASSEMBLY/ASSEMBLY [3] -1B. Holder section for BHR243 DISASSEMBLING R epair P 6 / 25 (1) Remove Tool holder set from Tool holder guide complete. ( Fig. 8 ) (2) Remove Cap 35, then separate Ring spring 19 from the groove of Tool holder using 1R003 with 1R212. (F ig. 9 ) (3) Remove Chuck cover, then remove Steel ball 7.0 while pressing down Sto[...]

  • Page 7

    P 7 / 25 [3] DISASSEMBLY/ASSEMBLY [3]-1B. Holder section for BHR243 (cont.) ASSEMBLING R epair (1) Assemble Torsion spring 31 to Tool holder as follows: • Set two Steel balls 6 on the holes of Tool holder. • Insert the short arm of Torsion spring 31 into the hole of Tool holder. Note : Apply Makita grease No. RB No. 00 to two Steel balls 6 to p[...]

  • Page 8

    P 8 / 25 [3] DISASSEMBLY/ASSEMBLY [3]-2. Drill chuck assembly for BHR243 R epair DISASSEMBLING Fig. 18 Fig. 19 Fig. 22 Fig. 21 Fig. 20 Steel ball 5.0 Leaf spring Flat washer 24 Drill chuck assembly can be disassembled as drawn in Figs. 18 to 22 . Change cover Change ring After Removing Ring spring 21, strike Drill chuck assembly against workbench w[...]

  • Page 9

    Change cover Change ring ASSEMBLING Chuck holder short arm of Torsion spring 31 long arm of Torsion spring 31 hole for Torsion spring 31 (1) Holding the flat portions of Chuck holder in vise, assemble Drill chuck to Chuck holder by turning it clockwise using Hex wrench 10. (2) Secure Drill chuck with M6x22 Flat head screw by turning it counterclock[...]

  • Page 10

    [3] DISASSEMBLY/ASSEMBLY [3]-3. Change lever (1) Remove dust and dirt from Change lever and the grooved area on Motor housing. (2) Set Change lever to Hammer mode. ( Fig. 27 ) Note : If it is hard to set Change lever to Hammer mode because of getting stuck in the halfway, turn the bit holder section / holder section of the machine by hand and then [...]

  • Page 11

    [3] DISASSEMBLY/ASSEMBLY [3]-4. Rotor (1) Loosen four 4x35 Tapping screws, and then remove Battery housing R and Housing R in order from their housings L. ( Fig. 31 ) (2) Remove Gear housing section as drawn in Fig. 32 . Inner housing in Gear housing section comes with Rotor. (3) Loosen two M4x12 Hex socket head bolts with 1R170, and then remove Be[...]

  • Page 12

    Fig. 35 [3] DISASSEMBLY/ASSEMBLY [3]-5. Torsion spring 6 for Connector, Battery housing ASSEMBLING R epair P 1 2 / 25 A B C Cushion rubber (R) Cushion rubber (L) (behind Terminal) Rubber pin 5 Pin 1.5 See Fig. 35 . Set Torsion spring 6 into Housing L, and then assemble Connector to Compression spring 6. Refer to A . Set Opener in place. Refer to B [...]

  • Page 13

    [3] DISASSEMBLY/ASSEMBLY [3]-6. Torque limiter section DISASSEMBLING ASSEMBLING R epair P 1 3 / 25 (1) Disassemble T ool holder section. ( Fi gs . 4 to 6 for BHR242/ Figs. 8 to 13 for BHR243 .) (2) Disassemble Change lev er. ( Figs. 27 to 29 ) (3) Remove Gear housing section from Motor housing, and then remov e Rotor section from Gear housing secti[...]

  • Page 14

    [3] DISASSEMBLY/ASSEMBLY [3]-6. Impact bolt in Torque limiter section R epair P 14 / 25 DISASSEMBLING (1) Put 1R388 into Tool holder (guide) complete, then push 1R388 in vise with the access holes on Tool holder (guide) complete parallel to Vise. ( Fig. 42 ) O-ring case B is moved toward the top of Tool holder (guide) complete, and therefore, Ring [...]

  • Page 15

    [3] DISASSEMBLY/ASSEMBLY [3]-6. Impact bolt in Torque limiter section (cont.) R epair P 15 / 25 ASSEMBLING Note: 2 Fig. 44A Fig. 44B Impact bolt A (1) Assemble Impact bolt section to Tool holder (guide) complete as drawn in Fig. 44A/ 44B. Impact bolt section in Tool holder complete for BHR242 Impact bolt section in Tool holder guide complete for BH[...]

  • Page 16

    P 16 / 25 R epair DISASSEMBLING Fig. 47 Fig. 49 Fig. 48 Fig. 50 Fig. 51 (1) Disassemble Motor housing section, Gear housing section and Inner housing section. (2) Remove Flat fillister HD pin 6, two Weight holder guides, Flat washer 6, Stop ring E-5, Inner support complete and two M4x25 Hex socket head bolts from Inner housing. ( Fig. 47 ) (3) Whil[...]

  • Page 17

    P 17 / 25 R epair DISASSEMBLING ASSEMBLING Fig. 52 Fig. 53 (6) Remove Stop ring EXT U-6 from Can shaft, then separate Flat washer 7, Spur gear 10 and Clutch cam A from Can shaft. (7) Receive Spiral bevel gear 32 on 1R139 put on U-groove of Arbor press table and press out Cam shaft with 1R281 (ø7mm round bar) as drawn in Fig. 52 . The swash bearing[...]

  • Page 18

    P 18 / 25 R epair ASSEMBLING Fig. 55 (5) Set Compression spring 14 and Flat washer 14 to the projection of Inner housing as drawn in Fig. 55 . Insert Guide plate and Piston joint into Piston cylinder, and then pass the pole of Swash bearing 10 through Piston joint. (Fig. 56 ) (6) Assemble Inner support complete to Inner housing with two M4x25 Hex s[...]

  • Page 19

    1R258 P 19 / 25 R epair [3] DISASSEMBLY/ASSEMBLY [3]-8. Oil seal 25, Cup sleeve, Ball bearing 6806LLU Fig. 60 Ball bearing 6806LLU Cup sleeve Fig. 61 Fig. 62 1R258 Fig. 63 Fig. 64 (1) Assemble Inner housing complete to Gear housing complete. (2) Put Inner housing complete on U-groove table portion of arbor press, then press Oil seal 25, Cup sleeve [...]

  • Page 20

    P 2 0 / 25 R epair [3] DISASSEMBLY/ASSEMBLY [3]-9. Motor of Dust extraction system DX01, DX02 Fig. 65 Fig. 66 Note: Special repairing tool and Lubricant are not required. (1) Separate Housing R and eight 4x18 Tapping screws from Housing L. (2) Remove Baffle plate, Filter plate, Sponge sheet C and Motor complete as an assembled part. ( Fig. 65 ) Ass[...]

  • Page 21

    P 2 1 / 25 R epair [3] DISASSEMBLY/ASSEMBLY [3]-10. Slide levers of Dust extraction system DX01, DX02 Fig. 67 Fig. 68 • Slide lever B on Housing L Remove Rack B and Compression spring 3 in Housing L as drawn in Fig. 67 , and then move Slide lever B toward the upper direction like the arrow mark. ( Fig. 67 ) • Slide lever A on Slide pipe Remove [...]

  • Page 22

    P 2 2 / 25 R epair [3] DISASSEMBLY/ASSEMBLY [3]-11. Tips on repair of Dust extraction system DX01, DX02 Fig. 69 Fig. 70 • Hose 30 is not glued on the other parts, and therefore it is possible to remove Hose 30 from Collector base A (DX01)/ B (DX02) and Inner pipe. ( Fig. 69 ) When it is difficult to remove because of the tight contact, peel it wi[...]

  • Page 23

    P 2 3 / 25 C ircuit diagram Fig. D-1 Fig. D-2 Terminal Switch BHR242, BHR243 DX01, DX02 Stator Controller Orange mark White mark Black mark Connector to Dust extraction system (DX01, DX02) Connector to BHR242 and BHR243 Black Orange Blue Brown White Red Y ellow Color index of lead wire’ s sheath Controller DC motor Two hole type Line filter (if u[...]

  • Page 24

    P 24 / 25 BHR242, BHR243 Lead wires to Connector have to be routed between Rib B and Rib D. Lead wires to Connector and Stator lead wires have to be routed between Rib A and Rib B. Route the lead wires between Connector and Controller to the bottom of Housing L so as not to rise on the top line of Rib C. Turn them back to set Connector in place. Pl[...]

  • Page 25

    P 25 / 25 W iring diagram (cont.) Fig. D-4 DX01, DX02 Red mark Black lead wire Connector viewed from lead wire installation side Lead wires between Connector and Controller have to fixed with these lead wire holders. Do not slack them between the lead wire holders. Connector Red lead wire White lead wire DC motor Connect Lead wires to DC motor with[...]