39
7
18
17
18
17
TM 9-4940-568-34
5-143
e.
Cleaning/Inspection.
Do not clean or immerse starter
motor parts in grease dissolving
solvents. Solvents will dissolve
grease packed in drive assembly
and may damage armature or
field coil insulation.
(1)
Clean all motor parts with a soft cloth prior
to testing.
(2)
Inspect all parts for cracks, distortion or
other structural damage. Replace parts or
assemblies which are cracked, bent or
otherwise damaged.
(3)
Inspect threaded parts for stripped, crossed
or otherwise damaged threads. Replace
parts with thread damage that cannot be
cleaned up. Replace any hardware items
that have damaged threads.
(4)
Inspect clutch drive assembly (39).
(5)
Replace clutch drive assembly if pinion gear
turns roughly or turns in both directions,
pinion gear teeth are broken or showing
evidence of step wear, and deep scoring or
other damage to shift lever collar has
occurred.
(6)
Inspect brush holder assembly (7). Replace
brush holder if loose riveted joints or
cracked or broken insulation is found.
(7)
Inspect brushes (17) and (18) for excessive
wear. The minimum allowable brush length
is 0.472 in. (12 mm). Replace excessively
worn brushes in sets.
