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 396 of 1015

3-7. OIL

TM 9-2320-272-24-1

THIS TASK COVERS:

a. Removal

b. Inspection

c. Installation

INITIAL SETUP:

APPLICABLE MODELS

M939/A1

REFERENCES (TM)

LO 9-2320-272-12

TM 9-2320-272-10

TOOLS

TM 9-2320-272-24P

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

Torque wrench (Appendix E, Item 146)

MATERIALS/PARTS

Antiseize tape (Appendix C, Item 72)

EQUIPMENT CONDITION

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

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

Left splash shield removed (TM 9-2320-272-10).

Engine oil drained (para. 3-5).

NOTE

Engine oil pan is mounted with screw-assembled washers on

late model engines.

Have adequate drainage container ready to catch oil.

1.

Remove two screws (6), washers (7), and clamps (5) from oil pump pickup and return hoses (2) and (8)

and engine oil pan (3).

2.

Disconnect oil pump pickup hose (2) from adapter flange (4) and oil pump (1).

Inspect oil pump pickup hose (2). Replace if threads are stripped or hose (2) is cracked or frayed.

1.

Apply antiseize tape to male pipe threads of oil pump pickup hose (2) and adapter flange (4).

2.

Connect oil pump pickup hose (2) to oil pump (1) and adapter flange (4).

3.

Install two clamps (5) on oil pump pickup and return hoses (2) and (8) and engine oil pan (3) with

two washers (7) and screws (6). Tighten screws (6) 35-40 lb-ft (47-54 N•m).

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