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 842 of 933

TM 9-2520-270-34

REPAIR THIRD RANGE RELAY VALVE ASSEMBLY

DESCRIPTIO N

This task covers: Disassemble (page 4-506). Assemble (page 4-509).

INITIAL SETUP

Tools:

General mechanic’s tool kit:

automotive — (Item 33, App C)

Inside/outside indicator caliper —

(Item 41, App C)

Machinist’s vise – (Item 47, App C)

Micrometer caliper set – (Item 52, App C)

Retaining-ring pliers – (Item 61, App C)

Small hole gage set – (Item 72, App C)

Socket wrench adapter —

(Item 75, App C)

Socket wrench attachment —

(ltem 82, App C)

Torque wrench — (Item 100, App C)

NOTE

Two types of third range relay valve assembly

are in use. Portions of these procedures

apply

to

each

valve assembly.

1.

PLACE THIRD RANGE RELAY

VALVE ASSEMBLY IN VISE,

1.1

INSPECT VALVE ASSEMBLY AND

DETERMINE TYPE.

a. If valve assembly is type (1),

go to step 2.

b. If valve assembly is type (2),

go to step 14.1.

Materials/Parts:

Transmission oil — (Item 12, App B)

Preformed packing

Preformed packing

Retaining ring

Retaining ring

Personnel Required:

Track Veh Rep 63H10

Equipment Conditions:

Third range relay valve assembly on workbench.

See page 4-502.

4-506

Change 2