Necessary Repairing Tools - Makita BO3710 Technical Information

R
epair
CAUTION: Repair the machine in accordance with "Instruction manual" or "Safety instructions".

[1] NECESSARY REPAIRING TOOLS

Code No. Description
1R027 Bearing setting pipe 18-10.2 Removing Armature
1R029 Bearing setting pipe 23-15.2 Removing Balancer from Base
1R258 V block
1R269 Bearing extractor
1R286 Round bar for Arbor 12-50
1R350 Ring 60
[2] LUBRICATIONS
No lubrication is required.
[3] DISASSEMBLY/ASSEMBLY
[3]-1. Armature
DISASSEMBLING
1) Remove Top cover by unscrewing five 4x18 Tapping screws.
Then remove Brush holders with Carbon brushes and Lead wires.
Switch, Noise suppressor and Power supply cord can be replaced.
(Fig. 1)
2) Remove Pad complete by unscrewing four M4x10 Pan head screws.
O ring 53 may be attached to Pad complete. Do not lose O ring 53.
(Fig. 2)
3) Insert Slotted screwdriver between a rib of Base and Balancer to
stop moving of Balancer and remove M5x16 Countersunk head
screw. (Fig. 3)
4) Remove Base together with Balancer and Ball bearing 6202DDW.
(Fig. 4)
5) Remove Fan guide, Flat washer 8 and Fan 68 by unscrewing two
4x18 Tapping screws. (Fig. 5)
6) After removing four 4x18 Tapping screws, tap Motor housing with
Plastic hammer as illustrated in Fig. 6. Armature can be removed
together with Bearing box.
Fig. 2
Pad O ring 53
complete
M4x10 Pan head
screw (4pcs.)
Fig. 5
4x18 Tapping screw
(2pcs.)
Fan 68
Holding Ball bearing 6202DDW when removing Balancer
Removing Ball bearings from Armature
Removing Ball bearing 6202DDW from Balancer
Holding Base when removing Balancer and Ball bearing 6202DDW
Fig. 3
Phillips screwdriver
Slotted screwdriver
Rib of Base
Balancer
M5x16 Countersunk
head screw
Base
Fig. 6
Fan guide
Flat washer 8
Use for
Fig. 1
Top cover
Brush
holders
4x18 Tapping screw
(4pcs.)
4x18 Tapping screw
(5pcs.)
Fig. 4
Ball bearing 6202DDW
Base
Flat washer 8
Bearing box
Armature
Motor housing
P 2/ 7
Balancer