TM 9-2320-289-34
4-3.
ALTERNATOR TESTING AND REPAIR (M1010) (Con’t).
2.
3.
4.
5.
6.
7.
8.
Inspect all components for damage or corrosion. Replace cracked components. Repair or
replace any component that is nicked or scratched, Remove any corrosion with crocus cloth.
Inspect stator for burned, charred, or broken wires. Replace stator if wires are burned,
charred, or broken.
Check resistance between each stator lead and stator frame. If there is not infinite resistance,
replace stator.
Inspect connector terminals to see if any are recessed into connector. Replace connector if
any terminals are recessed.
Inspect bearings in accordance with TM 9-214.
Measure slipring (55) diameter, If diameter is less than 0.767 in. (19.48 mm) replace rotor.
Measure slipringwina bearing inner race diameter at several points and compare readings.
Maximum difference in diameter (out-of-round) should be 0.002 in. (0.051 mm). If diameter is
less than 0.871 in. (22. 12 mm), or if bearing race is out-of-round, replace slipring bearing.
d.
ASSEMBLY]
into drive end housing. Install 4 screws (53).
CAUTION
Sliprings (55) should not contact any hard surface while pressing rotor
(54) into drive end housing (3). Failure to follow this caution may result in
damage to rotor.
2.
Press rotor (54) into drive end housing (3) and install woodruff key (50). Install fan spacer (52)
on rotor shaft. Aline fan (49) to woodruff key and install with nut (51).
4-19
