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 374 of 1313

FIELD MAINTENANCE

ENGINE OIL CONTAMINATED

INITIAL SETUP:

Tools and Special Tools

Tool Kit, General Mechanic's: Automotive

(Volume 5, WP

0826, Table 1, Item 56)

Personnel Required

(2)

References

Point to Point Schematics

Volume 2, WP

0211

Volume 2, WP

0213

References (cont.)

Volume 2, WP

0229

Volume 2, WP

0232

Volume 2, WP

0233

Volume 2, WP

0243

Volume 2, WP

0299

Equipment Condition

Vehicle parked and engine shut down.

(TM

9-2320-272-10)

TROUBLESHOOTING PROCEDURE

ENGINE OIL CONTAMINATED

NOTE

Conduct this malfunction test if engine oil is contaminated. This procedure will check for

sludge and metal particle in oil. It also checks for leaking transfer pump seal, transfer pump

gasket, oil cooler and aftercooler.

TM 9-2320-272-23-1

0018

0018-1