TM-9-2320-272-24-4

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

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

JUNE 1998

TM-9-2320-272-24-4 - Page 306 of 836

TM 9-2320-272-24-4

5-42. TRANSMISSION OIL PAN AND FILTER MAINTENANCE

THIS TASK COVERS:

a. Removal

c. Installation

b. Cleaning and Inspection

INITIAL SETUP:

APPLICABLE MODELS

REFERENCES (TM)

All

TM 9-2320-272-24P

TOOLS

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

Torque wrench (Appendix E, Item 146)

MATERIALS/PARTS

O-ring (Appendix D, Item 429)

Transmission oil filter (Appendix D, Item 699)

Gasket (Appendix D, Item 159)

EQUIPMENT CONDITION

Transmission torque converter removed (para. 5-41).

SPECIAL ENVIRONMENTAL CONDITIONS

Work area clean and free from blowing dirt and

dust.

1.

Remove twenty-one screws (l), oil pan (2), and gasket (3) from transmission (4). Discard

gasket (3).

2.

Rotate transmission (4) in stand until oil pan (2) mounting surface is horizontal and facing upward.

3.

Remove oil filter screw (6), oil filter (7), and filter suction tube (8) from transmission (4).

4.

Remove filter suction tube (8) from oil filter (7). Discard oil filter (7).

5.

Remove O-ring (9) from filter suction tube (8). Discard O-ring (9).

1.

For general cleaning instructions, refer to para. 2-14.

2.

For general inspection instructions, refer to para. 2-15.

3.

Inspect oil pan (2) for cracks. If cracked, replace oil pan (2).

NOTE

New oil pan has a plug in left side fill port.

If oil pan is defective, remove plug if present.

4.

Remove oil plug (5). Retain for installation in new oil pan (2).

5-300