Reassembly - Hitachi G 18SH2 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 Gear [19] <19> and Pinion [7] <7> with grease. Rub grease onto the teeth
with your fingers so that the grease reaches each tooth bottom. Note that under-lubricated Gear [19] <19>
and Pinion [7] <7> may wear at a faster rate.
(2) When replacing the Armature [13] <13> and the Ball
Bearing 6000VVCMPS2L [37] <37> on the commutator
side, press inward on the Dust Seal [36] <36> while
taking care of its direction until the end face of the Dust
Seal [36] <36> hits against the butting surface of the
Armature [13] <13> and make sure that the Dust Seal
[36] <36> cannot turn freely. (See Fig. 9.)
The Dust Seal [36] <36> is an important element for
improved dust protection of the Ball Bearing
6000VVCMPS2L [37] <37>. Be sure to use a new one
at every disassembly work of the Ball Bearing
6000VVCMPS2L [37] <37>.
(3) Apply Three Bond TB 1406 Screw Locking Agent to the following screws.
Two Seal Lock Screws (W/SP. Washer) M5 x 14 (Black) [1] <1> which fix Bearing Cover (A) [12] <12> in
place.
Four Hex. Socket Hd. Bolt (W/Flange) M5 x 16 [27] <27> which fix Packing Gland [26] <26> in place.
(4) Check that the spring end does not hold the terminal when mounting the carbon brush. Do not catch the
terminal in the brush cover when mounting the brush cover.
Fig. 12
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Armature Shaft
Ball Bearing
(6000VVCMPS2L)
Dust Seal
Fig. 11