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Makita BTW074 manual

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Table of contents for the manual

  • Page 1

    P 1/ 15 C ONCEPT AND MAIN APPLICATIONS PRODUCT Models No. Description BTW074, BTW104 Cordless Impact Wrench ( The image above is Model BTW074.) W H L Dimensions: mm (") Width (W) Height (H) Length (L) 74 (2-15/16) 144 (5-5/8) * 1 216 (8-1/2) * 1 / 234 (9-1/4) * 2 * 1 149mm (5-7/8”) for Anti-wobble anvil version * 2 with 1.5Ah Li-ion battery [...]

  • Page 2

    Code No. Description Use for 1R004 Retaining Ring S Pliers disassembling / assembling Ring spring 7 1R045 Gear extractor disassembling / assembling Hammer section 1R222 1R288 Socket Adapter Screwdriver magnetizer removing Steel ball 5.6 from Spindle securing Ring spring 7 P 2/ 15 R epair [1] NECESSAR Y REP AIRING TOOLS CAUTION: Repair the machine i[...]

  • Page 3

    P 3/ 15 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -1. Note for Assembly/Disassembly The models can be distinguished depending on the max. fastening torque. See Fig. 2 . When repairing the products, be sure to assemble Hammer , Compression spring and Switch plate complete or Cover complete as shown in Fig.2 . Model No. Max. fastening torque Distinctive[...]

  • Page 4

    P 4/ 15 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -2. Armature (1) Remove Armature section from Housing set as drawn in Fig. 3 , and remove Brush holder from Armature in Fig. 4 . Fig. 3 Fig. 4 DISASSEMBLING Carbon brush Carbon Brush Armature Y oke unit Brush holder Notch Notch T orsion Spring Carbon Brush Carbon Brush T ail of T orsion spring T ail of[...]

  • Page 5

    P 5/ 15 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -2. Armature (cont.) (1) Insert Armature into Y oke unit so as not to damage the wiring of Armature and not to be pinched your fingers between yoke unit and Armature fan. And insert the drive end of Armature into Internal gear case as drawn in Fig. 6 . (2) Assemble Motor section (Armature, Y oke unit )[...]

  • Page 6

    P 6/ 15 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -2. Armature (cont.) (3) Assemble Motor section (Armature, Y oke unit ), Internal gear case and Brush holder to Housing set (L) as drawn in Fig. 8 . Fig. 8 Fig. 9 Fig. 10 ASSEMBLING Rib 90° Y oke unit Mark Housing Set (L) (5) Assemble F/R change lever as drawn in Fig. 10 . (6) Be sure to assemble ID p[...]

  • Page 7

    P 7/ 15 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -3. Ball bearing 6801LLB in Internal gear case Fig. 1 1 DISASSEMBLING (1) Disassemble Brush holder and Motor section together with Internal gear case as drawn in Fig. 3 . (2) Remove Internal gear case from Armature as drawn on the left in Fig. 5 . (3) Remove Ball bearing 6801LLB from Internal gear case[...]

  • Page 8

    P 8/ 15 R epair [3] DISASSEMBL Y/ASSEMBL Y Fig. 12 DISASSEMBLING [3] -4. Bit holder section, Anvil (1) Loosen four M4x22 Pan head screws and separate Hammer case complete from Housing set. See the drawing on the upper left in Fig. 3 . (2) Remove Ring spring 7 as drawn in Fig. 12 . And then, remove Anvil as drawn in Fig. 13 . *For Anvil without Ring[...]

  • Page 9

    P 9/ 15 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -5. Hammer section Fig. 15 Fig. 16 DISASSEMBLING (1) Loosen four M4x22 Pan head screws and separate Hammer case complete from Housing set. See the drawing on the upper left in Fig. 3 . (2) Remove Hammer section from Housing set. See Fig. 15 . (3) T ake out Steel ball 5.6 with 1R045 as drawn in Fig. 16 [...]

  • Page 10

    P 10/ 15 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -5. Hammer section (cont.) Fig. 17 Fig. 18 DISASSEMBLING ASSEMBLING Hammer and Steel balls 3.5, viewed from above (4) Disassemble Hammer section as drawn in Fig. 17 . Assemble Hammer section by reversing the disassembly procedure. (Refer to Fig. 17 ) Note for Assembling : Before putting Flat washer 24[...]

  • Page 11

    P 1 1/ 15 C ircuit diagram Fig. D-1 W iring diagram Y ellow Brush holder complete Brush holder Line filter* *Line filter is not used for some countries. Switch LED Circuit LED Connector T erminal Connector Color index of lead wires' sheath Black Red Fig. D-2 Wiring to M1 T erminal of Switch Wiring to M2 T erminal of Switch V iewed from Housing[...]

  • Page 12

    P 12/ 15 W iring diagram Fig. D-3 Wiring of LED Lead Wir e (before setting Switch) Wiring in Housing set (L) (after setting Switch) LED Rib A Rib B Rib D Lead wire holder A Connectors in Connector box B Connectors can be also routed through Connector box B. In this case, Lead wires have to be secured with Lead wire holder B. Note for Wiring : If Li[...]

  • Page 13

    P 13/ 15 C ircuit diagram Fig. D-4 W iring diagram Fig. D-5 BTW074, BTW104 (equipped with Automatic Impact Stop System) Y ellow Brush holder complete Brush holder Line filter* *Line filter is not used for some countries. Switch LED Light Circuit LED Circuit (W arning of Power Reduce) LED W arning Light Controller Connector (6 pin) Connector (4 pin)[...]

  • Page 14

    P 14/ 15 Fig. D-6 W iring diagram Wiring of LED Lead Wir e (before setting Switch) BTW074, BTW104 (equipped with Automatic Impact Stop System) Rib F LED Boss Rib A Rib B Rib D Rib C Connector box Wiring of Lead wir e of LED W arning Lamp (before setting Switch) Rib F LED Boss Rib A Rib B Rib D Rib C Connector (4 pin) Route Lead wires (blue, red and[...]

  • Page 15

    P 15/ 15 W iring diagram Fig. D-7 BTW074, BTW104 (equipped with Automatic Impact Stop System) Line filter Route Line filter between Ribs E and F . Wiring in Housing set (L) (after setting Switch) Rib F LED light Switch Rib E Route Lead wires for connecting to Switch between Boss and the inner wall of Housing set (L). Boss Be careful not to route an[...]