Reassembly - Hitachi G 12SA3 Technical Data And Service Manual

8-2. Reassembly

Put the parts together in the reverse order of disassembly, with the precautions given below.
(1) Generously lubricate the teeth of the Gear [20] <20> and the Pinion [6] <6> with grease. Rub grease onto the
teeth with your fingers so that the grease reaches each tooth bottom. Note that under-lubricated Gear [20]
<20> and Pinion [6] <6> may wear at a faster rate.
(2) When replacing the Armature [12] <12> and the Ball
Bearing 608VVC2PS2L [17] <17> on the commutator side,
press inward on the Dust Seal [16] <16> while taking care
of its direction until the end face of the Dust Seal [16] <16>
hits against the butting surface of the Armature [12] <12>
and make sure that the Dust Seal [16] <16> cannot turn
freely. (See Fig. 9.)
The Dust Seal [16] <16> is an important element for
improved dust protection of the Ball Bearing 608VVC2PS2L
[17] <17>. Be sure to use a new one at every disassembly
work of the Ball Bearing 608VVC2PS2L [17] <17>.
(3) Apply Three Bond TB 1406 Screw Locking Agent to the following screws.
Two Seal Lock Screws (W/Sp. Washer) M4 x 10 [18] <18> which fix the Bearing Cover [11] <11> in place.
Three Seal Lock Screws (W/Sp. Washer) M4 x 8 [21] <21> which fix Bearing Cover (B) [22] <22> in place.
Four Seal Lock Screws (W/Sp. Washer) M5 x 16 [26] <26> which fix the Packing Gland [25] <25> in place.
(4) [Only for U.K. (110 V)]
When connecting the Terminal [46] <52> to the internal wire (the middle wire among three) of the Noise
Suppressor [40] <46>, strip the insulation sheath on the itnernal wire by about 6 mm and press-connect it
together with the Terminal [46] <52> with a clamping tool available on the market. (See Fig. 10.)
Solderless connection
Fig. 10
--- 10 ---
Armature Shaft
Ball Bearing
608VVC2PS2L [17] <17>
Dust Seal [16] <16>
Fig. 9