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October 2015

2.2.1.2. ASSEMBLING

1. Turn Drill chuck clockwise until it seats on the end of the

threaded portion of spindle.

2. Fix Hex wrench 8 as shown.

Note: L-shaped portion of Hex wrench 8 must be fixed

securely.

3. Housing R must be touched on the side surface of

workbench.

Note: Battery portion must not be touched.

ull Switch trigger slowly with Drill mode/Speed change1/

Forward (clockwise) rotation until spindle is locked.

Note: Release the trigger of Switch just after Spindle is

locked. Do not keep on pulling the trigger for longer

than one second.

5. If you reuse the Screw removed from Drill chuck, appl

reeBond 1342 or Loctite 243 to the thread of the

Screws.

Note: M6x22(-) Flat head screw: HP331D

M5x22(-) Pan head screw: DF331D

Figure 8

2.2.2. GEAR ASS’Y AND MOTOR SECTION

2.2.2.1. DISASSEMBLING

It is required to remove Drill chuck when replacing Gear assembly.

1. Re

move Housing R (2) by loosening 3x16 Tapping screw

(4) (x9).

Figure 9

(4)

(2)

10 / 18

Makita HP331D Repair Manual

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