Repair Makita HP330D

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Repair Makita HP330D

 

 

CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”.

 

1. NECESSARY REPAIRING TOOLS

 

 

2. LUBRICATION

 

It is not required to lubricate the gear section because the portion is replaced as a factory-assembled gear unit.

 

3. DISASSEMBLY/ASSEMBLY

1. Drill chuck

 

DISASSEMBLING

 

Note: It is required to remove Drill chuck when replacing Gear assembly, but you need not when replacing the parts that are independent of Gear assembly.

Set the machine and repairing tools. (Figs. 1, 2, 3)

 

 

1. Drill Chuck (cont.) ASSEMBLING

 

Remove Drill chuck. (Fig. 4)

 

 

1) Set the machine. (Fig. 5 and 6)

2) Set Hex wrench 8 to vise and described in Fig. 3.

 

 

1. Drill chuck (cont.) ASSEMBLING

 

Set Drill chuck in place. (Fig. 7)

 

 

2. Gear assembly, Motor section DISASSEMBLING

 

1) Remove Drill chuck. (Figs. 1, 2, 3) Note: It is not required to remove Drill chuck when replacing only DC motor.

2) Remove Housing R from Housing L. (Fig. 8)

 

 

3) Separate DC motor from Gear assembly. (Fig. 9)

 

 

3. Gear assembly, Motor section (cont.) ASSEMBLING

 

1) Assemble Gear assembly to DC motor. (Fig. 10)

 

 

2) Assemble Speed change lever to Lever of Gear assembly. (Fig. 11)

 

 

Gear assembly, Motor section (cont.) ASSEMBLING

 

3) Before setting Gear assembly and DC motor, take the following step in Fig. 12.

 

 

4) Setting Gear assembly and DC motor to Housing L, fasten Housing R with six 3x16 Tapping screws. (Fig. 13)

 

 

5) Set Drill chuck in place. (Figs. 5, 6, 7)

 

Circuit diagram

 

 

Wiring diagram

 

Flag connectors have to be connected to the electrical parts as drawn in Fig. D-2.

 

 

Route LED lead wires in Housing set (L) as drawn in Fig. D-3.

 

Route lead wires except for LED in Housing L. ( Fig. D-4)