Fig. 2; Assembling - Makita GA7030R Technical Information

R
epair
[4] DISASSEMBLY/ASSEMBLY
[4]-1. Armature, Small spiral bevel gear, Ball bearing 6301DDW
DISASSEMBLING
(1) Disassemble Armature and Spiral bevel gear (small) as illustrated in Figs. 2 and 3.

Fig. 2

Remove Carbon brushes. And then
remove 5x35 Tapping screws.
5x35 Tapping screw
(4pcs.)
Brush holder cap
Fig. 3
Turn Armature counterclockwise while
holding M8 Hex nut with Wrench 13.
M8 Hex nut can be removed.
Wrench 13 for locking M8 Hex nut
(2) Disassemble Ball bearing 6301DDW as illustrated in Figs. 4 and 5.
Fig. 4
Remove Retaining ring R-42 with 1R005,
then remove Flat washer 20.
Gear housing complete
Ball bearing 6301DDW
Remove Gear housing complete
together with Armature.
Gear housing complete
Carbon brush
Pull off Armature while
holding Small spiral bevel gear.
M8 Hex nut
Fig. 5
Set Armature and Small spiral bevel gear to Gear housing complete.
And set M8 hex nut in place temporarily by reversing the step of
Fig. 3.
Tap the end of Gear housing complete with a plastic hammer.
Ball bearing 6301DDW can be removed from Rubber ring 38 in
Flat washer 20
Gear housing complete. Felt ring 18 falls off at that time.
Rubber ring 38
Retaining ring
R-42
Remove Bearing box and M6x22
Hex socket head bolts.
Armature
M6x22 Hex socket head bolt (4pcs.)
Note: If the above work is very difficult
due to the seizing of Small spiral
bevel gear, spray a lubricant
between Armature shaft and Small
Small spiral
spiral bevel gear. And then turn
bevel gear
and pull Armature while holding
Small spiral bevel gear with pliers
and a cloth.
Armature
M8 Hex nut
Ball bearing 6301DDW
Felt ring 18 (a component of Gear housing complete)
P 3/ 11
Small spiral bevel gear