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 762 of 1015

TM 9-2320-272-24-1

3-145. TRANSMISSION MODULATOR AND CABLE MAINTENANCE

THIS TASK COVERS:

a Removal

c. Adjustment

b. Installation

INITIAL SETUP:

APPLICABLE MODELS

All

TOOLS

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

Torque wrench (Appendix E, Item 144)

MATERIALS/PARTS

O-ring (Appendix D, Item 454)

Locknut (Appendix D, Item 276)

Two locknuts (Appendix D, Item 283)

Locknut (Appendix D, Item 284)

REFERENCES (TM)

LO 9-2320-272-12

TM 9-2320-272-10

TM 9-2320-272-24P

EQUIPMENT CONDITION

l

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

l

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

a. Removal

NOTE

1.

2.

3.

4.

5.

Have drainage container ready to catch oil.

Remove screw (15), retaining bracket (14), modulator (17), and O-ring (16) from transmission (13).

Discard O-ring (16).

Remove locknut (22), screw (19), speedometer cable clamp (18), and modulator cable clamp (20) from

transmission bracket (21). Discard locknut (22).

Remove modulator return spring (8) from modulator link (9) and bracket (2).

Remove two locknuts (3), screws (7), clamp (6), and shim (5) from bracket (2). Discard locknuts (3).

Remove locknut (1), screw (10), modulator link (9), and modulator cable (4) from throttle lever (11)

on fuel pump (12). Discard locknut (1).

6.

Remove modulator link (9) from modulator cable (4).

3-398