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 878 of 1313

FIELD MAINTENANCE

OIL PRESSURE GAUGE INOPERATIVE (OIL LEVEL IS CORRECT)

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.)

Volume 2, WP

0310

Volume 2, WP

0312

Volume 2, WP

0333

Volume 3, WP

0351

Volume 3, WP

0352

Equipment Condition

Vehicle parked and engine shut down.

(TM

9-2320-272-10)

TROUBLESHOOTING PROCEDURE

OIL PRESSURE GAUGE INOPERATIVE (OIL LEVEL IS CORRECT)

NOTE

Conduct these malfunction tests if oil pressure gauge is inoperative. This procedure will check

for a faulty sending unit, wiring harness or gauge.

TM 9-2320-272-23-1

0103

0103-1