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 283 of 1313
ENGINE FAILS TO CRANK - Continued
STEP
5.
DOES THE STARTER MOTOR SOLENOID SOUND LIKE IT IS ENERGIZED?
a.
Set vehicle controls to crank engine.
T0034DAA
Starter Solenoid
Figure 5.
Starter Solenoid.
b.
Depress starter switch and listen to starter motor solenoid inside engine compartment.
CONDITION/INDICATION
DOES THE STARTER MOTOR SOLENOID SOUND LIKE IT IS ENERGIZED?
DECISION
NO - Perform Starter Motor Inoperative, No Solenoid Thump troubleshooting (WP
0088).
YES - Go to Step (7).
STEP
6.
DOES THE STARTER MOTOR SOUND LIKE IT IS RUNNING OVERSPEED?
a.
Set vehicle controls to crank engine.
T0035DAA
Starter Motor
Figure 6.
Starter Motor.
b.
Depress starter switch and listen to starter motor.
TM 9-2320-272-23-1
0006
0006-6
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