TM-9-2320-272-24-1

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4

JUNE 1998

TM-9-2320-272-24-1 - Page 740 of 1015

TM 9-2320-272-24-1

3-139. TRANSMISSION OIL COOLER FILTER AND HEAD REPLACEMENT

THIS TASK COVERS:

a. Oil Cooler Filter Removal

b. Oil Cooler Filter Head Removal

c.

Oil Cooler Filter Head Installation

d. Oil Cooler Filter Installation

INITIAL SETUP:

APPLICABLE MODELS

REFERENCES (TM)

All

LO 9-2320-272-12

TOOLS

General mechanic’s tool kit (Appendix E, Item 1)

MATERIALS/PARTS

Oil filter (Appendix D, Item 491)

Three locknuts (Appendix D, Item 299)

Lubricating oil (Appendix C, Item 48)

Rag (Appendix C, Item 58)

Cap and plug set (Appendix C, Item 14)

TM 9-2320-272-10

TM 9-2320-272-24P

EQUIPMENT CONDITION

l

Parking brake set (TM 9-2320-272-10).

l

Hood raised and secured (TM 9-2320-272-10).

a. Oil Cooler Filter Removal

NOTE

Have drainage container ready to catch oil.

Remove oil filter (3) and oil filter seal (2) from oil filter head (1). Drain oil and discard oil filter (3) and

oil filter seal (2).

b. Oil Cooler Filter Head Removal

CAUTION

l

Clean area around hoses before removal to prevent entry of dirt.

Damage may occur if dirt or dust enters the transmission.

l

Cover or plug all open hoses and connections immediately after

disconnection to prevent contamination. Failure to do this may

result in transmission damage.

NOTE

l

Have drainage container ready to catch oil.

l

Tag hoses for installation.

1.

Remove oil filter (3) as shown in task a.

2.

Remove oil filter supply hose (8) from adapter elbow (7).

3.

Remove supply hose (9) from adapter elbow (10).

4.

Remove three locknuts (4), screws (6), and oil filter head (1) from oil filter bracket (5). Discard

locknuts (4).

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