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Makita M1901B Repair Manual
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Makita M1901B Repair Manual

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OFFICIAL USE
For ASC
Power Planer
M1901B
REPAIR MANUAL

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Summary of Contents for Makita M1901B

  • Page 1 OFFICIAL USE For ASC Power Planer M1901B REPAIR MANUAL...

  • Page 2: Necessary Repairing Tools

    P 2 / 11 epair CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”. Index [1] NECESSARY REPAIRING TOOLS [2] LUBRICATION [3] DISASSEMBLY/ASSEMBLY [3]-1. Poly V-belt 4-241 [3]-2. Armature P 4 - 5 [3]-3. Drum P 6 - 7 [3]-4.
  • Page 3 P 3 / 11 epair [3] DISASSEMBLY/ASSEMBLY [3] -1. Poly V-belt 4-241 DISASSEMBLING (1) Disassemble Belt cover. Remove Belt cover and then remove Poly V-belt 4-241 as illustrated in Fig. 2 in case of replacing the Poly V- belt only. In case of replacing Armature, Ball bearings or Drum, remove the Poly V-belt as illustrated in Fig.
  • Page 4 P 4 / 11 epair [3] DISASSEMBLY/ASSEMBLY [3] -2. Armature DISASSEMBLING (1) In case of replacing Armature, remove Poly V-belt 4-241 as illustrated in Fig. 2A. (2) Remove Carbon brush as shown in Fig. 4. Fig. 4 1. Remove Nozzle by unscrewing M4x22 Pan head screw.
  • Page 5 P 5 / 11 epair [3] DISASSEMBLY/ASSEMBLY [3] -2. Armature DISASSEMBLING (5) Separate Armature from Bracket complete, and remove Ball bearings as shown in Fig. 7. Fig. 7 1. Firmly gripping Bracket complete with 1R045, separate Armature from Bracket complete. Armature Bracket complete Drum...
  • Page 6 P 6 / 11 epair [3] DISASSEMBLY/ASSEMBLY [3] -3. Drum DISASSEMBLING (1) Remove Poly V-belt 4-241. See Fig. 2A. (2) Separate Bracket complete section from Main frame. See Fig. 4, Fig. 5. (3) Separate Drum from Bracket complete as shown in Fig. 9. Fig.
  • Page 7 P 7 / 11 epair [3] DISASSEMBLY/ASSEMBLY [3] -3. Drum ASSEMBLING (1) Assemble Ball bearing 608ZZ to Drum of opposite side of V pulley 4-37. And assemble Ball bearing 6000ZZ to the same of V pulley 4-37 side. Refer to Fig. 10. (2) Mount Drum to Bracket.
  • Page 8 P 8 / 11 epair [3] DISASSEMBLY/ASSEMBLY [3] -4. Front base, Base (rear side) DISASSEMBLING (1) Front base section can be disassembled as shown in Fig. 12. Fig. 12 3. Remove Scale label from Knob 44, because the numbers 2. Front base can be separated on Scale label deviates from the 1.
  • Page 9 P 9 / 11 epair [3] DISASSEMBLY/ASSEMBLY [3] -4. Front base, Base (rear side) ASSEMBLING, ADJUSTMENT (1) Mount Foot to Base. And assemble the Base to Main frame complete. Refer to Fig. 13. (2) Mounting Rubber packing and Compression spring 18 to Front base, assemble the Front base to Main frame complete.

  • Page 10: Circuit Diagram

    P 10 / 11 ircuit diagram Fig. D-1 Color index of lead wires' sheath Symbol of electrical parts Item No. Black Insulated terminal (M3.5) Blue Non-Insulated Spring terminal White Brown Circuit of inside of Switch < Note > Switch AWG: American Wire Gage AWG18 Power supply cord AWG18...

  • Page 11: Wiring Diagram

    P 11 / 11 iring diagram Fig. D-2 Keep so enough distance from Insulated terminal of Switch, that Noise suppressor does not interferes with setting of Switch, when Noise suppressor is used. Insulated terminals Noise suppressor Switch Pass Field lead wires through this hole to handle section, and connect them to Switch.