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 589 of 933

TM 9-2520-270-34

REPAIR LEFT-HAND SINGLE DISK BRAKE

DESCRIPTIO N

This task covers: Disassemble (page 4-262). Assemble (page 4-265).

INITIAL SETUP

Tools:

General mechanic’s tool kit:

automotive — (Item 33, App C)

Inside/outside indicator caliper —

(Item 41, App C)

Micrometer caliper set —

(Item 52, App C)

Socket wrench attachment —

(Item 79, App C)

Socket wrench attachment —

(Item 81, App C)

Socket wrench set – (Item 89, App C)

Telescoping gage set – (Item 93, App C)

Torque wrench (Item 99, App C)

DISASSEMBL E

CAUTION

Shaft collar is installed under spring pressure.

Do not lose parts when removing piston

retaining pin.

REMOVE SPRING (1).

1.

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

press shaft collar (2) and spring (1)

b. Remove pin (3) from brake piston

rod (4).

c. Slowly release

Remove collar

4-262

Change 2

pressure on spring (1)

(2) and spring.

Materials/Parts:

Transmission oil – (Item 12, App B)

Disk brake parts kit

Personnel Required:

Track Veh Rep 63H10

Equipment Conditions:

Left-hand single disk

See page 4-255.

brake on workbench.

2. REMOVE PISTON ASSEMBLY (5) WITH

ROD (4).