Makita BUB143 Technical Information Download Page 2

2

6

R

epair

[1] NECESSARY REPAIRING TOOLS

[2] LUBRICATIONS

Code No.

Description

Use for 

1R309

Spring pin extractor 5.0

Locking Fan AP-10302 when removing M5x8 Pan head screw 

1R263

Bearing extractor

(Use this tool if Fan AP-10302 cannot be removed by the method of 

described in “[3]-1. Fan housing set and Fan AP-10302”

No need to lubricate.

[3] DISASSEMBLY/ASSEMBLY

[3]-1. Fan housing set and Fan AP-10302

Fig. 1

DISASSEMBLING

(1) Remove nozzle assembly.

(2) Remove Fan housing set and Fan AP-10302. (

Figs. 1 

and

 2

)

1. Unscrew 4x18 Tapping screws and

    remove Fan housing L.

2. Lock Fan AP-10302 by inserting 1R309 or Phillips 

    screwdriver into the hole of the Fan, and remove 

    M5x8 Pan head screw while Holding Fan AP-10302

    with gloved hand as drawn above.

    Now, Fan AP-10302 is removed from Fan housing R.

Note

: Remove Fan AP-10302 by levering up with two

          1R263 if the Fan cannot be removed by hand.

4x18 Tapping

screw (4pcs.) 

1R309 or Phillips

screwdriver

as a stopper

Phillips screwdriver

M5x8 Pan

head screw 

Fan housing L

Fan housing R

Fig. 2

ASSEMBLING

Assemble Fan housing set and Fan AP-10302 by reversing the disassembly procedure. (Refer to 

Figs. 2 

and

 1

)

3. Remove 4x18 Tapping screws.  Fan housing R can be separated from Motor housing. 

4x18 Tapping screw (3pcs.)

Fan housing R

Fan housing R

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