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 680 of 1313

FIELD MAINTENANCE

DUMP BODY WILL NOT RAISE

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.)

TM 9-2320-272-10

Volume 4, WP

0715

Volume 4, WP

0719

Volume 4, WP

0720

Equipment Condition

Vehicle parked and engine shut down.

(TM

9-2320-272-10)

TROUBLESHOOTING PROCEDURE

DUMP BODY WILL NOT RAISE

NOTE

Conduct these malfunction tests if dump body will not raise. This procedure will check for

power takeoff condition, oil leaks from hydraulic lines or control valve, condition of control

valve and pump housing for leaks or overheating with power takeoff engaged.

TM 9-2320-272-23-1

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