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C. Removal of socket (A) ass'y and gear ass'y
(1) Remove Gear Cover (A) Ass'y
[8] <8>
and the Inner Cover Ass'y
[20] <19>
, then Socket (A) Ass'y
[11]
<11>
, Gear Set
[14] <14>
and Clutch Disc
[12] <12>
can be removed. If the Gear Set
[14] <14>
is hard to
remove, lightly tap the end surface of the Inner Cover Ass'y
[20] <19>
with a wood hammer. Be careful not
to lose the Spring
[13] <13>
on the outer circumference of the Gear Set
[14] <14>
and Washer (A)
[16]
<16>
. As shown in Fig. 5, insert two flat-blade screwdrivers between the Inner Cover Ass'y
[20] <19>
and
the Gear Set
[14] <14>
at each side and remove the Gear Set
[14] <14>
and Ball Bearing 608VVC2PS2L
[15] <15 >
from the Inner Cover Ass'y
[20] <19>
as a single unit.
8-2. Reassembly
Reassembly can be accomplished by following the disassembly procedures in reverse. However, special
attention should be given to the following items.
(1) Fan side Ball Bearing
[18] <15>
for the Armature
[21] <20>
in the Inner Cover Ass'y
[20] <19>
should be
renewed in disassembling the Armature
[21] <20>
.
(2) Lubrication
Grease: Hitachi Motor Grease (Code No. 930035)
Application:
(a) Fill a moderate amount of grease in Gear Cover (A) Ass'y
[8] <8>
. (If Gear Cover (A) Ass'y
[8] <8>
is new,
fill it with 7 g of grease.)
(b) Outer circumference and clutch of Socket (A) Ass'y
[11] <11>
(c) Teeth and clutch of the Gear Set
[14] <14>
(d) Outer circumference of the Gear Set
[14] <14>
(e) Clutch and inner circumference of the Clutch Disc
[12] <12>
(f) Pinion of the Armature
[21] <20>
Fig. 6
Inner Cover Ass'y
[20] <19>
Gear Set
[14] <14>
Flat-blade screwdriver
Flat-blade screwdriver