Makita GA4040 Technical Information page 3

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -2. Armature, Spiral bevel gear [small one]
DISASSEMBLING
(1) Remove Spiral bevel gear (small) from the drive end of Armature as drawn in Fig. 2.
Fig. 2
1. Remove Rear cover by unscrewing
one 4x18 Tapping screw.
Rear cover
4x18 Tapping screw
4. Unscrew four Tapping screws. Then separate Gear housing cover from Motor housing
while applying a slotted screwdriver to the groove on Gear housing cover.
Groove on
Gear housing cover
5. Remove M6 Hex nut to turn it with Wrench 10
counterclockwise. Then, remove Flat washer 6
and small Spiral bevel gear from Armature.
M6 Hex nut
Wrench 10
2. Shift Spiral spring from
Carbon brush top.
Gear housing cover
6. Remove Gear housing cover with 1R045.
Then, remove Flat washer 12.
1R045
Flat washer 6
Spiral bevel
gear (small)
3. Disconnect Carbon brush from
commutator by pulling up.
Note: No need to remove in this step.
Armature
Ball bearing
6001LLB
Gear housing
cover
Flat washer 12
Armature
P 3/ 12