R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -2. Armature
(1) Remove Armature section from Housing set as drawn in
Fig. 3
, and remove Brush holder from Armature in
Fig. 4
.
Fig. 3
Fig. 4
DISASSEMBLING
Carbon brush
Carbon
Brush
Armature
Yoke unit
Brush holder
Notch
Notch
Torsion
Spring
Carbon
Brush
Carbon
Brush
Tail of
Torsion spring
Tail of
Torsion Spring
1. Shift the tail of Torsion spring
from the top of Carbon brush to
the notch of Brush holder.
Then, Carbon brush is free from
the pressure of Torsion spring.
2. Take out Carbon brushes.
Then, disassemble
Armature and Yoke unit
from Brush holder.
1. Loosen four M4x22 Pan head screws and separate
Hammer case complete from Housing set.
2. Loosen two M3x12 Pan head screws and
separate Rear cover from Housing set.
3. Loosen seven M3x20 Pan head screws and
separate Housing set (R) from Housing set (L).
4. Take out Brush holder and Motor section
(Armature and Yoke unit) together with
Internal gear case from Housing set (L).
M3x20
Pan head screw
(7 pcs.)
M3x12
Pan head screw
Housing set (R)
Rear cover
Brush holder
Internal gear case
Motor section
Housing set (L)
M4x22
Pan head screw
(4 pcs.)
Hammer case
complete
Hammer case complete
P
4
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