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 278 of 1313

FIELD MAINTENANCE

ENGINE FAILS TO CRANK

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.)

WP

0086

WP

0088

Volume 2, WP

0220

Volume 2, WP

0303

Volume 2, WP

0346

Volume 2, WP

0349

Volume 2, WP

0350

Equipment Condition

Vehicle parked and engine shut down.

(TM

9-2320-272-10)

TROUBLESHOOTING PROCEDURE

ENGINE FAILS TO CRANK

NOTE

Conduct these malfunction tests if engine fails to crank. This procedure will check battery

cables, clamps, posts and cases, starter motor, flywheel ring gear, specific gravity levels for

each battery, test battery voltage and check for a seized engine.

TM 9-2320-272-23-1

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