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P 8/17
[3] DISASSEMBLY/ASSEMBLY
[3] -4. Motor Section
Repair
5) Remove Crank section from Crank housing complete by tapping
Crank housing complete with plastic hammer. (Fig. 14)
6) Remove Armature from crank housing complete using 1R023,
1R225 and arbor press as described in Fig. 15.
DISASSEMBLY
1. Set Crank housing complete
on 1R023, and apply the thin
end of 1R225 to Armature shaft.
Then press down 1R225 using
arbor press until it stops.
2. Turn over 1R225, and fit the pin on the thick end of 1R225
in the inner race of Ball bearing 6001DDW.
Armature can now be removed by pressing down 1R225
using arbor press.
Fig. 15
Ball bearing
6001DDW
1R023
Armature shaft
thin end
of 1R225
thick end
of 1R225
Fig. 14
Crank section
O Ring 39
thin end
of 1R225
thick end
of 1R225
Note:
1R225 of old specification cannot
be set in place due to the height A
of 20mm. If your 1R225 is old one,
grind down the height A to 15mm
or less using power grinder.
[Cross-sectional view] [Cross-sectional view]
pin
height A
1R225
ASSEMBLY
Do the reverse of the disassembling steps.
Note: Make sure that O Ring 39 is mounted to Bearing box of Crank section before assembling Crank section
to Crank housing complete. (Fig. 14)
Crank housing complete
Crank housing
complete