Makita Makstar BFT121F Technical Information page 2

R
epair
< 1 > Lubrication
Apply MAKITA grease N. No.2 to the following portions marked with black triangle to protect
parts and product from unusual abrasion.
(24)
Flat
(28)
washer 12
(31)
Item
No.
Descriptions
24 Steel ball 3
42 Steel ball 3
29 Steel balls 4
28 Clutch ring
38 Spindle
31 Switch lever
39 Carrier complete A
40 Spur gear 17
41 Inner gear 46
44 Internal Inner gear Teeth portion
46 Spur gear 10
complete
47 Spur gear 31.
< 2 > Disassembling bit holder section
Remove ring spring with No.1R291 "Retaining ring S and R pliers" from spindle as illustrated in Fig. 1.
Then, bit holder section can be disassembled as illustrated in Fig. 1A.
1R291
Retaining ring S and R pliers
Fig. 1
(38)
(29)
The portion to be lubricated
The surface where (29) Steel balls 4
are mounted.
The 4 shafts for accepting
(40) Helical gears 17.
Teeth portion
Teeth portion
The 4 shafts for accepting
(47) Spur gears 31.
Teeth portion
Ring spring
Sleeve
Spindle
Flat washer 18
(40)
(39)
(41) (42)
Flat washer 11
Compression spring 13
Steel ball 3.0 x 2 pcs.
Sleeve
Fig.1A
(47)
(44) (46)
Used Amount
quantity of lubricant
16 pcs.
Approx. 0.5 g
in total
38 pcs.
Approx. 0.1 g
3 pcs.
in total
1 pc.
Approx. 0.3 g
1 pc.
Approx. 0.9 g
1 pc.
Approx. 0.1 g
1 pc.
4 pcs.
Approx. 1.4 g
1 pcs.
in total
1 pcs.
1 pc.
3 pcs.
Spindle <Note>
Be careful, not to lose
compression spring 13
and steel ball 3 in this
step.
P 2 / 12