Makita M9204 Technical Information page 4

4 REPAIR
4-1 Switch, Power supply cord and Carbon brush
4-1-1 Disassembling
[1] Switch and Power supply cord are accessible by just removing
Top cover and three 4x18 Pan head screws.
[2] Remove Brush holders with Carbon brushes as follows:
Pull out flag terminals of lead wires from tabs of Brush holder.
Hold the tab with long nose pliers, then push one of Carbon brush
toward Commutator side and lift up Brush holder vertically.
Remove the other Brush holder and Carbon brush in the same manner.
Note: Do not bend tabs of Brush holders.
Do not scratch commutator.
4-1-2 Assembling
.
Assemble by reversing Disassembling procedure.
4-2 Pad 123, Ball bearing 6202DDW and Armature Ass'y
4-2-1 Disassembling
[1] Remove three M4x18 Pan head screws .then separate Pad 123, Bearing box cover and Brake ring.
[2] Hold Fan 88 by inserting slotted screwdriver from a vent of Skirt, then remove M4x14 Pan head screw with Flat washer
4 from Armature ass'y. Flat washer 15, Bearing box and Ball bearing 6202DDW can be removed.
Brake ring
Bearing box cover
Pad 123
M4x18 Pan
head screws(3pcs)
[3] Separate Skirt set (L) and (R) by removing M4x20 Pan head screws (2pcs.), then pull out Fan 88.
[4] Remove four 4x18 Tapping screws, then pull out Armature ass'y with Bracket from Motor housing set.
M4x20 Pan head screw(2pcs)
Skirt set
Fig. 4-1-1-1
Fig. 4-2-1-1
Bearing box
Ball bearing 6202DDW
Flat washer 4
M4x14 Pan head screw
Fig. 4-2-1-2
Fan 88
Bracket
4x18 Tapping screws
4 / 6
4x18 Pan head screws (3pcs.)
Flat washer 15
Commutator
Tab of Brush
holder
Carbon brush
Fan 88
Vent of Skirt
Insert slotted screwdriver so
as not to revolve Fan 88.
Motor housing set
Armature ass'y