96. STARTING MOTOR INSPECTION
1) Inspect Commutator
Inspect commutator for dirt or burn. Correct
with sandpaper or lathe, if necessary.
#300-400
.
Fig.
9-
11
Check commutator for uneven wear. If deflec-
tion of dial gauge pointer exceeds limit, repair
or replace.
NOTE:
Below specification presupposes that armature is
free from bend. Bent shaft must be replaced.
Commutator
out of round
Standard
Limit
0.05 mm (0.0019 in.)
0.4 mm
or less
(0.015 in.)
Inspect commutator for wear. If below limit,
replace armature.
Standard
Limit
Co;ye;tor
outside
32
mm
31 mm
(1.26 in.) (1.22 in.)
Fig.
9-
13
Inspect commutator for mica depth. Correct or
replace if below limit.
Commutator
mica depth
Standard
Limit
0.4
-
0.6 mm
0.2 mm
(0.015
-
0.023 in.) (0.0076 in.)
0.4
-
0.6 mm
(0.015
-
0.023 in.)
Insulator
Commutator
CORRECT
Fig. 912
INCORRECT
Fig.
9
14
9-7