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 308 of 1313

FIELD MAINTENANCE

STARTER CRANKS ENGINE SLOWLY, HARD TO START

INITIAL SETUP:

Tools and Special Tools

Tool Kit, General Mechanic's: Automotive

(Volume 5, WP

0826, Table 1, Item 56)

Test Set, Electronic Systems

(Volume 5, WP

0826, Table 1, Item 51)

Personnel Required

(2)

References

Point to Point Schematics

References (cont.)

WP

0087

Volume 2, WP

0232

Volume 5, WP

0820

Equipment Condition

Vehicle parked and engine shut down.

(TM

9-2320-272-10)

TROUBLESHOOTING PROCEDURE

STARTER CRANKS ENGINE SLOWLY, HARD TO START

NOTE

Conduct this malfunction test if engine cranks slowly and is hard to start. This procedure will

check for incorrect cold weather oil and a faulty starting system.

TM 9-2320-272-23-1

0008

0008-1