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TM5-4120-387-14
(1) To replace connector (J2):
(a) Using screwdriver, remove four screws from connector (J2).
(b) Using screwdriver, remove four screws from terminal box.
(c) Pull connector away from terminal box as far as wires will allow.
(d) Tag and unsolder wire leads.
(e) Remove old connector.
(f) See wiring diagram (fig. 4-7) and tags and solder leads to new
connector.
(g) Remove tags.
(h) Using screwdriver, secure connector to terminal box with four
screws.
(i) Using screwdriver, secure terminal box to motor with four screws.
(2) To replace bearings:
(a) Match-mark motor frame and bracket (end bell) to ease reassembly.
(b) Using screwdriver, remove four screws from bracket (end bell).
(c) Carefully separate bracket (end bell) from motor frame.
(d) Carefully pull rotor with shaft from the frame with stator.
Bearings are permanently lubricated and sealed at the time of
manufacture.
Do not attempt to clean or relubricate them.
Keep bearings in plastic bags or wrap securely in grease-
proof paper until needed for assembly.
(e) Remove bearings.
(f) Examine rotor, stator, and shafts for nicks, gouges, deformations,
and evidence of overheating.
(g) Dress high metal defects in shafts with a fine file or stone. If
shaft is beyond repair, replace rotor and shaft.
(h) Examine motor frame with stator for broken flange, stripped
threads, visible damage, shorted windings (para 4-62) and evidence of overheat-
ing.
If motor frame with stator is beyond repair, replace motor.
(i) Coat shaft surfaces with oil (MIL-L-2104, Grade 20) or equal.
5-5
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