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TM 5-2420-222-34
7-2. ENGINE STARTER REPAIR (Con’t).
e.
TEST
CAUTION
Do not turn starter for more than 20 seconds starter to cool at least two minutes before
1.
Rotate armature (9) by hand. If shaft does not turn
freely, do not proceed with test.
2.
Disconnect all leads from the electromagnetic relay
(7) and make test connections as shown.
3.
Using automotive generator and starter test stand,
perform starter no-load test. Current draw should be
105-200 amp at 10.6 v, with no-load speed of 6500-
14,000 rpm.
4.
High reading indicates a shorted or grounded hold-in
winding.
Low
reading
indicates
excessive
resistance.
5.
Check
hold-in
winding
at
26.5-30.5
amp
with
multimeter and carbon pile connected to motor
terminal.
FOLLOW-ON TASKS:
•
Install starter (see TM 5-2420-222-20).
TA701358
7-30
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