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 742 of 1313

FIELD MAINTENANCE

SOLENOID OPERATES, STARTER OPERATES, BUT ENGINE CRANKS SLOWLY

INITIAL SETUP:

Tools and Special Tools

Tool Kit, General Mechanic's: Automotive

(Volume 5, WP

0826, Table 1, Item 56)

Multimeter

(Volume 5, WP

0826, Table 1, Item 34)

Test Set, Electronic Systems

(Volume 5, WP

0826, Table 1, Item 51)

Personnel Required

(2)

References

Point to Point Schematics

References (cont.)

TM 9-6140-200-14

Volume 2, WP

0303

Volume 2, WP

0349

Volume 2, WP

0350

Equipment Condition

Vehicle parked and engine shut down.

(TM

9-2320-272-10)

TROUBLESHOOTING PROCEDURE

SOLENOID OPERATES, STARTER OPERATES, BUT ENGINE CRANKS SLOWLY

NOTE

Conduct these malfunction tests if the starter motor and solenoid operate, but the engine

cranks slowly. This procedure will check for faulty batteries, starter motor and solenoid. It will

also check for bad cable connections at the batteries, starter, and ground.

TM 9-2320-272-23-1

0087

0087-1