Makita GA4530 User Manual
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R
epair
Note: If difficult to remove Armature due to galling and seizing
of Spiral bevel gear 10 in Gear housing:
1. Spray the lubricant between Spiral bevel gear 10 and
Armature shaft.
2. Cover Spiral bevel 10 with a cloth, and hold Spiral
bevel gear 10 over the cloth with water pump pliers.
3. Remove Spiral bevel gear 10 by turning the water pump
pliers counterclockwise.
of Spiral bevel gear 10 in Gear housing:
1. Spray the lubricant between Spiral bevel gear 10 and
Armature shaft.
2. Cover Spiral bevel 10 with a cloth, and hold Spiral
bevel gear 10 over the cloth with water pump pliers.
3. Remove Spiral bevel gear 10 by turning the water pump
pliers counterclockwise.
[3] DISASSEMBLY/ASSEMBLY
[3] -1. Armature, Ball bearing 629DDW, Spiral bevel gear 10 (cont.)
[3] -1. Armature, Ball bearing 629DDW, Spiral bevel gear 10 (cont.)
DISASSEMBLING
(3) Remove Armature together with Gear housing from Motor housing as illustrated in Figs. 3,and 4.
(4) Remove Armature from Gear housing as illustrated in Figs. 5 and 6.
(4) Remove Armature from Gear housing as illustrated in Figs. 5 and 6.
Bearing box
Gear housing
Gear housing
After removing 4x22 Tapping screws (4pcs.), separate Gear housing together with
Armature as illustrated below.
Armature as illustrated below.
Armature
Motor housing
Remove M4x14 Pan head screw (4pcs.)
with which Bearing box is fastened to
Gear housing.
with which Bearing box is fastened to
Gear housing.
M4x14
Pan head screw (4 pcs.)
Pan head screw (4 pcs.)
4x22
Tapping
screw (4 pcs.)
Tapping
screw (4 pcs.)
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Spiral bevel gear 10
Armature
Pull off Armature while supporting Spiral bevel gear 10
by hand so as not to drop off from Gear housing.
by hand so as not to drop off from Gear housing.
M6 Hex nut
Turn M6 Hex nut counterclockwise
with a wrench to remove it.
with a wrench to remove it.