TM-9-2320-285-24-2
TRUCK TRACTOR, YARD TYPE, 43,500 LB GVW, DED, 4X2, ARMY MODEL M878A1
TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1985
TM-9-2320-285-24-2 - Page 41 of 698
TM 9-2320-285-24-2
3-7.
ALTERNATOR TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
ALTERNATOR NOT OPERATING PROPERLY
Perform alternator electrical tests (para 3-9).
If tests indicate parts are defective, replace (para 3-9).
3-8.
STARTER TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
STARTER NOT OPERATING PROPERLY
Step 1. Perform starter bench test (para 3-10).
a.
If test indicates parts are defective, replace (para 3-10).
b.
If test does not indicate parts are defective, proceed to step 2 below.
Step 2. Connect voltmeter leads to ground and starter switch control terminal (single black electrical lead behind
shield).
Turn key switch to on position.
a.
If voltmeter indicates zero volts, replace starter switch (para 3-10).
b.
If voltmeter indicates 12-14 Vdc, replace solenoid (para 2-25a).
3-35
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