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8. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY
The
[Bold]
numbers in the descriptions below correspond to the item numbers in the Parts List and the exploded
assembly diagram for Model PDA-100M.
8-1. Disassembly
(1) Disassembly of the armature
1) Remove the Brush Caps
[38]
and take out the Carbon Brushes
[39]
.
2) Loosen the four Tapping Screws D5 x 25 (Black)
[1]
which fix the Gear Cover Ass'y
[3]
to remove the
Armature
[7]
from the Housing
[33]
together with the Bearing Holder
[6]
.
3) Loosen the Special Nut M7
[4]
which fixes the pinion to remove the pinion.
4) Insert the hooks of the J-204 bearing puller between the Ball Bearing 628VVC2PS2-L
[5]
and the Bearing
Holder
[6]
from both sides and fix the hooks with the wing bolts.
5) Place the J-204 bearing puller on a supporting jig and push down on the tip of the armature shaft with a
hand press to remove the Ball Bearing 628VVC2PS2-L
[5]
. Then remove the Bearing Holder
[6]
.
(2) Disassembly of the dust seal
1) Insert the hooks of the J-204 bearing puller between the commutator and the Dust Seal
[11]
from both
sides, and fix the hooks with the wing bolts.
2) Place the J-204 bearing puller on a supporting jig and push down on the armature shaft with a hand press
to remove the Dust Seal
[11]
together with the Ball Bearing 608VVC2PS2L
[12]
. Replace the Dust Seal
[11]
with new one because it is damaged by the removal of the Ball Bearing 608VVC2PS2L
[12]
.
(3) Disassembly of stator (A)
1) Remove the Armature
[7]
and loosen the Tapping Screw (W/Flange) D4 x 25 (Black)
[47]
to remove Tail
Cover (B)
[46]
.
2) Loosen the two Machine Screws (W/Washer) M3.5 x 6
[48]
that secure the internal wire of the Cord
[54]
and Stator (A)
[10]
to the Switch (1P Screw Type)
[49]
and loosen the two screws of the Pillar Terminal
[43]
. Remove the two internal wires from the Cord
[54]
and the Pillar Terminal
[43]
.
3) Remove the Tapping Screw (W/Flange) D4 x 40
[37]
and the Tapping Screw (W/Flange) D4 x 20 (Black)
[36]
. Remove Tail Cover (A)
[35]
then remove the Earth Terminal
[41]
from the Housing
[33]
.
4) Disconnect the two internal wires of Stator (A)
[10]
coming from the Brush Holder
[40]
of Stator (A)
[10]
.
5) Remove the Fan Guide
[8]
from the Housing
[33]
.
6) Loosen the Tapping Screw (W/Flange) D4 x 70
[9]
securing Stator (A)
[10]
. Remove Stator (A)
[10]
from
the Housing
[33]
.
(2) Never press the pushing button while the depressed center wheel is rotating.
If the pushing button (Fig. 2) is pressed while the depressed center wheel is rotating, the spindle will stop
immediately. In such a case, there is a danger that the wheel nut may be loosened, so that the depressed
center wheel flies out unexpectedly and may cause possibly serious injury.
Summary of Contents for PDA-100M
Page 23: ......
