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 766 of 1313
STARTER MOTOR INOPERATIVE; NO SOLENOID THUMP - Continued
STEP
14.
DOES ENGINE START WITH LEAD 566 DISCONNECTED FROM ALTERNATOR?
a.
Reconnect harness connector to protective control box.
T0707DAA
PROTECTIVE
CONTROL
BOX
PROTECTIVE
CONTROL
CONNECTOR
Figure 14.
Protective Control Box.
b.
Verify lead 566 disconnected from alternator. Refer to point to point schematics.
c.
Attempt to start engine.
CONDITION/INDICATION
DOES ENGINE START WITH LEAD 566 DISCONNECTED FROM ALTERNATOR?
DECISION
NO - Replace protective control box (Volume 2, WP
0319). Go to Step (15) to verify problem is solved.
YES - Replace alternator M939/A1 60 amp (Volume 2, WP
0300), M939A2 60amp (Volume 2, WP
0301),
100 amp (Volume 5, WP
0780). Go to Step (15) to verify problem is solved.
TM 9-2320-272-23-1
0088
0088-15
Back to Top
