TM-9-2320-272-23-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 1 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-1 - Page 794 of 1313
ALTERNATOR OVERCHARGING, BATTERY INDICATOR GAUGE IN RED POSITION - Continued
STEP
2.
IS A 100 AMP ALTERNATOR INSTALLED?
a.
Stop engine.
T0739DAA
568
568
568
Figure 2.
Alternator Electrical Wiring.
NOTE
100 amp alternators are equipped with a quick disconnect connector.
b.
Determine which alternator is in your vehicle.
CONDITION/INDICATION
IS A 100 AMP ALTERNATOR INSTALLED?
DECISION
YES - Replace 100 amp alternator (Volume 5, WP
0780). Go to Step (6) to verify problem is solved.
NO - Replace 60 amp alternator M939/A1 (Volume 2, WP
0300), M939A2 (Volume 2, WP
0301). Go to
Step
(6) to verify problem is solved.
TM 9-2320-272-23-1
0091
0091-3
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