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WARNING: Before attempting disassembly, be sure to turn off the power switch and disconnect
the plug from the power source outlet.
1. Precautions on disassembly and reassembly
[Bold] numbers in the description below correspond to the item numbers in the parts lists and exploded
assembly diagrams of the Models G 10SS2(S), and <Bold> numbers to those of the Models G 12STA(S),
G 12STX and G 13STA(S).
1. Removal of the armature and stator
(1) Loosen the Screw D4 x 16 [41]<40> and pull out the Tail Cover [40]<39>. Remove the two Carbon
Brushes (1 Pair) [27]<26> from the Brush Holders [31]<30>.
(2) Loosen the four Screws D4 x 23 [1]<1> that fix the Gear Cover Ass'y [3]<3> to remove the Armature
[7]<7> from the Housing [26]<25> together with the Bearing Holder [6]<6>. At this time, check that the
Rubber Bushing [25]<24> is fitted in the housing ball bearing chamber.
(3) Loosen the Special Nut M6 [4]<4> that fixes the Gear and Pinion Set [21]<20> and remove the Gear
and Pinion Set [21]<20>.
(4) Insert the hooks of the J-204 bearing puller (special repair tool, Code No. 970982) between the Ball
Bearing 608S [5]<5> and Bearing Holder [6]<6> from both sides and secure the hooks in place with
the wing bolts.
(5) Put the J-204 bearing puller on an appropriate stand. Push down the armature shaft with a hand press
to remove the Ball Bearing 608S [5]<5>. Then remove the Bearing Holder [6]<6>.
(6) Remove the four internal wires connected to the Tab Terminal [28]<27> and Pushing Button Switch
[32]<31> from the Stator [9]<9>.
(7) Remove the Fan Guide [8]<8> and Stator [9]<9> from the Housing [26]<25>.
NOTE: • If you have any trouble in removing the Stator [9]<9>, heat the Housing [26]<25> to
about 60°C for easier removal.
• The internal wire (single wire) of the Stator [9]<9> is covered with a heat-shrinkable
tube. Do not forcefully bend the internal wire of the Stator [9]<9> repeatedly and do not
peel off the heat-shrinkable tube when removing the Stator [9]<9> from the Housing
[26]<25>. Otherwise, the internal wire may be disconnected.
• Do not forcefully bend the stator terminal when removing the stator terminal from the
Pushing Button Switch [32]<31> and the tab terminal. Otherwise, the stator terminal
may be broken.
2. Removal of the rubber bushing
Insert the J-201 spring hook H-75 (special repair tool) between the Rubber Bushing [25]<24> assembled
in the Housing [26]<25> and the housing ball bearing chamber, and then pull out the Rubber Bushing
[25]<24>.
3. Removal of the dust seal
(1) Insert the hooks of the J-204 bearing puller between the Ball Bearing 626ZZ [24]<23> and the Dust
Seal [23]<22> and fix the hooks with the wing bolts. Be careful not to insert the hooks excessively.
(2) Put the bearing puller on an appropriate stand. Push down the armature shaft with a hand press and
pull out the Ball Bearing 626ZZ [24]<23>.
(3) Pull out the Dust Seal [23]<22> from the armature shaft.
REPAIR GUIDE
Disassembly
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