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 292 of 836

TM 9-2320-272-24-4

5-41. TRANSMISSION TORQUE CONVERTER MAINTENANCE

THIS TASK COVERS

a. Removal

d. Assembly

b. Disassembly

e. Installation

c. Cleaning and Inspection

INITIAL SETUP:

APPLICABLE MODELS

All

SPECIAL TOOLS

Bearing puller set (Appendix E. Item 105)

Drive handle (Appendix E, Item 38)

Bearing replacer (Appendix E, Item 15)

Bushing replacer (Appendix E, Item 25)

TOOLS

Arbor press

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

Vernier caliper (Appendix E, Item 159)

Torque wrench (Appendix E, Item 144)

MATERIALS/PARTS

Converter pump seal ring (Appendix D, Item 636)

Flywheel seal ring (Appendix D, Item 638)

Hook-type seal (Appendix D, Item 637)

Piston seal ring (Appendix D, Item 520)

Pump hub gasket (Appendix D, Item 225)

Six lockstraps (Appendix D, Item 342)

Thirty self-locking screws (Appendix D, Item 648)

Lubricating oil (Appendix C, Item 49)

Oil-soluble grease (Appendix C, Item 53)

REFERENCES (TM)

TM 9-2320-272-24P

EQUIPMENT CONDITION

Transmission mounted to holding fixture (para. 5-40).

SPECIAL ENVIRONMENTAL CONDITIONS

Work area clean and free from blowing dirt and

dust.

a. Removal

NOTE

Assistant will help with steps 1 and 2.

1.

Remove four nuts (1), washers (2), and screws (4) from converter retaining strap (3) and

transmission (7).

CAUTION

Torque converter must be pulled straight out of transmission and

not moved from side to side. Side movement will damage hook-

type seal ring on torque converter pump hub.

2.

Pull converter retaining strap (3) with torque converter (5) straight out of transmission (7).

3.

Remove two screws (6) and converter retaining strap (3) from torque converter (5).

5-286