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 384 of 836

TM 9-2320-272-24-4

5-57. ADAPTER HOUSING AND FIRST CLUTCH PISTON MAINTENANCE

THIS TASK COVERS

a. Removal

c. Cleaning and Inspection

b. Disassembly

d. Assembly

INITIAL SETUP:

APPLICABLE MODELS

All

SPECIAL TOOLS

Spring compressor (Appendix E, Item 31)

TOOLS

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

Spring tester (Appendix E, Item 131)

Torque wrench (Appendix E, Item 146)

Arbor press

MATERIALS/PARTS

Basic overhaul kit (Appendix D. Item 10)

Adapter housing gasket (Appendix D, Item 228)

Oil-soluble grease (Appendix C, Item 53)

REFERENCES (TM)

TM 9-2320-272-24P

EQUIPMENT CONDITION

Low clutch removed (para. 5-56)

SPECIAL ENVIRONMENTAL CONDITIONS

Work area clean and free from blowing dirt and

dust.

a.

Removal

Remove adapter housing (1) and gasket (2) from transmission housing (3). Discard gasket (2).

b. Disassembly

1.

Position compressor tool on first clutch spring retainer (5) and arbor press.

2.

Apply pressure to first clutch ring retainer (5), and remove snapring (4) from adapter housing (1).

3.

Remove compressor tool from first clutch spring retainer (5).

4.

Remove first clutch spring retainer (5) and twenty-six springs (6) from first clutch piston (7).

5.

Remove first clutch piston (7) from adapter housing (1).

6.

Remove outer seal ring (8) and inner seal ring (9) from first clutch piston (7). Discard inner seal

ring (9) and outer seal ring (8).

7.

Remove plug (10) from adapter housing (1).

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