REPLACE PRIORITY VALVE PISTON

TM 9-2520-270-34

REPLACE PRIORITY VALVE PISTON

DESCRIPTION

This task covers: Remove (page 4-61). Install (page 4-63).

INITIAL SETUP

Materials/Parts:

Tools:

Gasket

General mechanic's tool kit:

Lock washer (4)

automotive -- (Item 33, App C)

Inside/outside indicator caliper --

Personnel Required:

(Item 41, App C)

Micrometer caliper set -- (Item 52, App C)

Track Veh Rep 63H10

Retaining-ring pliers -- (Item 59, App C)

Socket wrench set -- (Item 89, App C)

Equipment Conditions:

Telescoping gage set -- (Item 93, App C)

Torque wrench -- (Item 99, App C)

Transmission mounted on tip-over stand.

REMOVE

CAUTION

Priority valve cover is under spring pressure.

Slowly remove cover to prevent loss of parts.

2. REMOVE PRIORITY VALVE COVER (4).

Using 3/8-inch drive brace handle and

7/16-inch socket, loosen two screws (5)

and lock washers (6). Unscrew each

screw one turn at a time until spring

1. REMOVE ACCESS COVER (1).

pressure is relieved.

Using 3/8-inch drive brace handle and

Remove two screws (5) and lock

7/16-inch socket, remove two screws (2)

washers (6). Discard lock washers.

and lock washers (3). Discard lock

washers.

Remove cover (4) and priority valve

gasket (7). Discard gasket.

Remove cover (1).

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4-61

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