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Damper (A)
[33]
Stopper Ring
[36]
Damper Holder
[35]
5-mm diameter hole (2 pcs.)
O-ring (C)
[34]
Fig. 19
O-ring (B)
[32]
O-ring (1AP-20)
[30]
Second Hammer
[29]
Hammer Holder
[31]
Tap with a hammer.
Punch (C) (J-341)
Fig. 20
Spring
[64]
Flat-blade
screwdriver
Terminal
Carbon
Brush
[66]
Long-nose
pliers
(6) Removal of the armature and the housing
After disassembly of the hammering mechanism section, remove the Machine Screw M4 x 8
[82]
from the
Grip Cover
[81]
and remove the Grip Cover
[81]
to show the carbon brushes. Hook the Spring
[64]
on the
edge of the carbon brush tube. Remove the Tapping Screw (W/Flange) D4 x 16 (Black)
[57]
from the Inner
Cover Ass'y
[42]
. Then the Inner Cover Ass'y
[42]
can be removed together with the Armature and Pinion
Ass'y DC 24 V
[60]
. At this time, be careful not to damage the carbon brushes. The Inner Cover Ass'y
[42]
and the Armature and Pinion Ass'y DC 24 V
[60]
can be removed just by pressing the Pinion
[55]
slightly with
a press because there is an interference of the O-ring
[58]
. The housing is constructed of two parts. Remove
the Tapping Screw (W/Flange) D4 x 20 (Black)
[70]
to disassemble the housing.
(7) Removal of the carbon brush holder
After disassembly of the housing, remove the Tapping Screw (W/Flange) D4 x 16 (Black)
[57]
to remove the
carbon brush holder.
(8) Replacement of the carbon brushes
Remove the Grip Cover
[81]
to show the carbon brushes. Pinch the terminal of the Carbon Brush (Auto Stop
Type) (1 Pair)
[66]
with a pair of long-nose pliers as shown in Fig. 20 and pull it out of the carbon brush holder.
At this time, melt solder at the terminal. Hook the Spring
[64]
on the Carbon Brush (Auto Stop Type) (1 Pair)
[66]
with a flat-blade screwdriver and remove the Carbon Brush (Auto Stop Type) (1 Pair)
[66]
.
Stopper ring jig (A) (J-341)
Vise