Makita Complete Guide to Drill Chuck Disassembly for Models

Repair

[3]DISASSEMBLY/ASSEMBLY

[3]-1. Drill Chuck

DISASSEMBLING

See Fig. 2.

1)Fix 1R139 securely in vise, then lock Spindle by putting it in the U-shaped notch of 1R139.

2)Fix Hex wrench 10 securely in Drill chuck. Attach an appropriate steel pipe to Hex wrench 10 as extension bar.

3)Remove Drill chuck from Spindle by turning

Drill chuck counterclockwise using Hex wrench 10 and steel pipe.

ASSEMBLING

P 3 /12

Fig. 2

	1R139
Drill chuck	Spindle

steel pipe

Hex wrench 10

Vise

1)Assemble 1R220, 1R222, 1R223 and A-33750 as illustrated in Fig. 3. Note: Preset the fastening torque of 1R223 to 25- 30N.m (250- 300 kgf.cm).

2)Lock Spindle as you did in step 1) of DISASSEMBLING, then fix 1R231 securely in Drill chuck. (Fig. 4)

3)Assemble Drill chuck to Spindle by turning 1R231 and Drill chuck clockwise using the repairing tools described in step 1) of ASSEMBLING. (Fig. 4)

Fig. 3 Fig. 4

1R223

A-33750

1R222

1R220

1R231