TM-9-2520-270-34

HYDROMECHANICAL CROSSDRIVE, TRANSMISSION HMPT 500 AND TRANSMISSlON CONTAINER ASSEMBLY

TECHNICAL MANUAL; DIRECT AND GENERAL SUPPORT MAINTENANCE

NOVEMBER 1984

TM-9-2520-270-34 - Page 777 of 933

TM 9-2520-270-34

REPAIR SECOND RANGE SINGLE DISK BRAKES

This task covers: Disassemble (page 4-441). Assemble (page 4-443).

Tools:

Materials/Parts:

General mechanic’s tool kit

Transmission oil — (Item 12, App B)

automotive — (Item 33, App C)

Disk brake parts kit

Micrometer caliper set —

(Item 52, App C)

Socket wrench attachment —

Personnel Required:

(Item 81, App C)

Socket wrench set — (Item 89, App C)

Telescoping gage set —

(Item 93, App C)

Torque wrench — (Item 99, App C)

Track Veh Rep 63H10

Equipment Conditions:

Second range single disk brakes on

workbench. See page 4-432.

1. REMOVE PLUG (1) FROM EACH

SECOND RANGE SINGLE DISK

BRAKE (2).

a.

b.

c.

Using 3/8-inch drive ratchet handle and

3/16-inch socket wrench attachment,

unscrew plug (1).

Remove and discard preformed

packing (3).

Repeat steps 1a and 1b for remaining

plug (1).

CAUTION

Shaft collar is installed under spring pressure.

Do not lose parts when removing pin.

2. REMOVE SPRING (4).

a. Using 9/16-inch open end wrench,

press shaft collar (5) and spring (4).

b. Remove pin (6) from brake piston

rod (7).

c. Slowly release

Remove collar

pressure on spring (4)

(5) and spring.

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Change 1

4-441

DESCRIPTION

INITIAL SETUP

DISASSEMBLE