Makita GA4034 Technical Information page 4

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3]-1. Armature, Ball bearing 629DDW, Ball bearing 607LLB, Spiral bevel gear 10 (cont.)
ASSEMBLING
Take the disassembling step in reverse.
Note: (1) Fit the groove of Guide plate to the protrusion on Gear housing. (Fig. 10)
(2) Pay attention to the direction of Labyrinth rubber ring 19 and Insulation washer. (Fig. 9)
(3) Gear housing has to be assembled to Motor housing so that Spindle installation side faces Switch lever A
complete side. (Fig. 11)
Fig. 10
Protrusion on Groove of Guide plate
Gear housing
[3]-2. Spiral bevel gear 37, Ball bearing 696ZZ, Ball bearing 6201DDW
DISASSEMBLING
Note: It is not necessary to separate Gear housing from
Motor housing when replacing the parts in Bearing box.
(1) Separate Bearing box section from Gear housing. (Fig. 3)
Remove Ball bearing 696ZZ with 1R269 and then separate
Ring spring 11 from Spindle with 1R004. (Fig. 12)
(2) Spindle, Spiral bevel gear 37 and Labyrinth ring can be
removed as illustrated in Fig. 13.
(3) Remove Ball bearing 6201DDW from Bearing box as
illustrated in Fig. 14.
Fig. 13
Labyrinth ring
1R031
Receive Labyrinth ring
on 1R031.
Fig. 14
1R005
Retaining ring
R-32
Fig. 11
Spindle
Spindle
Press down Spindle
with Arbor press.
Switch lever A complete
Fig. 12
After removing Ball bearing 696ZZ with 1R269,
remove Ring spring 11 with 1R004 and slotted
screwdriver.
Ball bearing 696ZZ
slotted screwdriver
Spiral bevel gear 37
Retaining
ring R-32
Labyrinth ring
Note: Ball bearing 6201DDW has damaged through
the process of disassembling. Do not reuse it.
Remove Retaining ring R-32 with 1R005,
Then remove Ball bearing 6201DDW by
striking Bearing box against the work table.
Note: Cover the work table with something
soft to avoid the damage on Bearing
box before disassembling.
Flat washer 12
Ball Bearing 6201DDW
P 4/ 11
Ring spring 11 1R004
Bearing box
Spindle