Makita GA4530 Grinder User Manual


 
P 6/ 13
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -2. Spiral Bevel Gear 37, Ball Bearing 6201DDW
DISASSEMBLING
M4x14 Pan head screw
(4 pcs.)
Remove Bearing box
from Gear housing.
Remove Bearing 696ZZ
from Spindle with 1R269.
Bearing box
Ball bearing 696ZZ
Gear housing
The parts in Bearing box can be removed illustrated in Figs. 16 to 19. There is no need to disassemble Motor section.
1R269
1R031
Bearing
box
section
Receive Labyrinth ring with 1R031.
And remove Spindle from Bearing box
section with arbor press.
The tolerance between Spiral bevel gear 37 and Spindle
is so small that it is difficult to remove Spindle without
damage to Ball bearing 6201DDW.
Therefore, Ball bearing 6201DDW has to be always
replaced with the new one.
1R031
1R004
Spindle
1R005
Flat washer 12
Strike Bearing box section against a worktable.
Ball bearing 6201DDW can be removed.
If difficult to remove Ball
bearing 6201DDW in the way
illustrated left, use arbor press.
Retaining ring
R-32
Remove Retaining ring R-32
with 1R005.
Ring Spring 11
While spreading the cut portion
of Ring spring 11 with 1R004,
shift the Ring spring 11 from
the groove on Spindle.
Fig. 16
Fig. 17
Fig. 18 Fig. 19
Labyrinth ring
Ball bearing 6201DDW
Retaining
ring R-32
Spiral bevel gear 37
1R246
Ball bearing 6201DDW