Makita BHP453 Informasi Teknis - Halaman 2

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Halaman Cetak

epair

Remove the battery and the bit from the machine for safety before repair/ maintenance!

CAUTION:

[1] NECESSARY REPAIRING TOOLS

Description

Hex wrench 8

Removing /mounting Keylss drill chuck

Plastic hammer

Removing Keyless drill chuck

[2] LUBRICATION

It is not required to lubricate the gear section. Use Makita genuine Gear assembly that is factory-lubricated when repairing.

[3] DISASSEMBLY/ASSEMBLY

[3] -1. Keyless Drill Chuck

DISASSEMBLING

Note: (1) It is required to remove Keyless drill chuck at first when replacing

Gear ass'y.

When parts other than Gear ass'y are related to repair,

removing Keyless drill chuck is not required.

(2) If it is impossible to remove Keyless drill chuck in the following

manner, use 1R359 (Chuck removing tool) to remove it. Refer to

Makita repair tool list.

1) Open the jaws of Keyless drill chuck fully, and remove M6x22 - Flat head

screw (left-handed and threadlocker coated) by turning clockwise using

cordless impact driver in Forward rotation mode with slotted bit.

2) Fix the short leg of a hex wrench 8 in Keyless drill chuck, then clamp the

long leg of the Hex wrench 8 securely in vise.

3) Set Action mode change lever of the machine in Drill mode, Speed change

lever in Low speed, and F/R change lever in Reverse rotation mode.

4) Install Battery and hold the machine securely with both hands, then remove

Keyless drill chuck from Gear ass'y by pulling Switch trigger slowly

to minimize the impact of kickback. (Fig. 1)

Important:

The machine rotates in the direction of the arrow with very strong force at

the moment when Switch trigger is pulled.

Therefore, be careful not to pinch your hand or finger between the machine

and the vise.

ASSEMBLING

1) Turn Keyless drill chuck clockwise until it sits on the end of the threaded portion of spindle of Gear ass'y.

2) Hold the short leg of Hex wrench 8 with Keyless drill chuck, and fix the long leg of Hex wrench 8 in vise. Install Battery.

Then set Action mode change lever of machine in Drill mode, Speed change lever in Low speed, and F/R change lever

in Forward rotation mode.

3) Slowly pull the switch trigger to rotate spindle until the motor is locked.

Important: Be sure to release the switch trigger just after Spindle is locked.

4) Secure Keyless drill chuck with M6x22 - Flat head screw by turning counterclockwise using cordless impact driver with

slotted bit.

Note: If you reuse the removed M6x22 - Flat head screw, apply threadlocker (ThreeBond 1321B/ 1342 or Loctite 242) to

the threaded portion.

Use for

Fig. 1

Note: Clamp the flats of Hex

wrench 8 securely in vise.

P 2/ 6