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 TM 55-1905-221-14-3
6-19.
STARTING MOTORS (ELECTRIC) (Continued).
LOCATION/ITEM
ACTION
REMARKS
OVERHAUL (Cont)
c.
If the bearings are worn more
than 0.005 inch (0.127 mm)
beyond maximum dimension, as
listed below, they should be
replaced. Wear will be
greatest on the side which
sustains the greatest thrust
during cranking. After a new
bearing is pressed into place,
cross drill oil hole. Ream
to finish size, as listed
below, and remove burrs in
oil passage. Finish size of
bearings are:
Inches
Millimeters
Drive end housing
bearing, ID
0.8145 - 0.8165
20.688 - 22.263
Middle bearing, ID
0.997 - 0.999
25.324 - 25.375
Commutator end
bearing, ID
0.562 - 0.564
14.275 - 14.326
d. If the brush holders, spacer
plates, insulators, etc., are
bent, warped, cracked, burned,
or otherwise damaged, replace
parts as needed.
e. The spring clutch Bendix drive
assembly is serviced by replac-
ing complete unit. The unit
must be in good condition,
with parts tightly fastened
together. If pinion teeth are
worn, burred, or chipped, re-
place Bendix drive assembly.
6-217
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