P 2/ 7

Repair

CAUTION: Remove the bit and the battery from the machine for safety before repair/ maintenance in accordance with the instruction manual!

[1] NECESSARY REPAIRING TOOLS

Code No.

Description

Use for

1R269

Bearing extractor

Removing Ball bearing 608

 

 

 

[2] LUBRICATION

Apply Makita grease FA.No.2 to the following portions designated with the black triangle to protect parts and product from unusual abrasion.

Item No.

Description

 

 

Portion to lubricate

Amount

18

Spindle

(a) The drum portion that contacts Plane bearing 14

 

(b) The Cam portion that contacts 24 Clutch cam C

 

 

 

 

19

Shoulder pin 8-10

(c) The portion that contacts 18 Spindle

a little

 

(d) The Drum portion that contacts 24 Clutch cam C

 

 

 

 

20 21

Flat washer 25

Whole portion

 

 

 

24

Clutch cam C

Each depressed portion for Steel ball 4

4g

31

Gear complete 18-44

(e) Teeth of the small gear that engages Helical gear 48

4g

 

 

(f) Teeth of the large Gear that engages Armature's gear

a little

Fig. 1

 

 

 

 

 

 

 

Plane bearing 14

 

 

 

Makita grease FA.No.2

 

 

(a)

18

 

 

 

 

 

 

(c)

19

20

 

 

 

 

 

(d)

 

 

 

 

 

 

21

 

 

 

(b)

 

 

24

 

 

 

 

 

 

Steel ball 4.0

 

 

 

 

 

 

Helical gear 48

 

 

 

 

 

 

Ball bearing 608

(f)

31

(e)

Armature

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Makita BFS450, BFS440 dimensions Necessary Repairing Tools, Lubrication