TM-9-2320-260-20

TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)

TECHNICAL MANUAL; UNIT MAINTENANCE

APRIL 1995

TM-9-2320-260-20 - Page 1173 of 1337

TM 9-2320-260-20

14-29. DEEPWATER FORDING PRESSURE RELIEF VALVE REPLACEMENT

THIS TASK COVERS:

a. Removal

b. Installation

INITIAL SETUP

APPLICABLE MODELS

EQUIPMENT CONDITION

All

• Parking brake set (TM 9-2320-260-10).

MATERIALS/PARTS

•

Hood raised and secured (TM 9-2320-260-10).

Four lockwashers

• Air reservoirs drained (TM 9-2320-260-10).

Two gaskets

GENERAL SAFETY INSTRUCTIONS

REFERENCES (TM)

Do not disconnect air lines before draining air

TM 9-2320-260-10

reservoirs.

TM 9-2320-260-20P

WARNING

Do not disconnect air lines before draining air reservoirs. Small

parts under pressure may shoot out with high, velocity, causing

injury to personnel.

1. Loosen clamp (3) and remove hose (4) from pressure relief valve (2).

2. Remove four screws (1), lockwashers (10), pressure relief valve (2), and gasket (5) from adapter (7).

Discard lockwashers (10) and gasket (5).

3. Remove three screws (6), adapter (7), and gasket (9) from breather housing (8). Discard gasket (9).

1. Install new gasket (9) and adapter (7) on breather housing (8) with three screws (6).

2.

Install new gasket (5) and pressure relief valve (2) on adapter (7) with four new lockwashers (10)

and screws (1).

3. Install hose (4) on pressure relief valve (2) and tighten clamp (3).

FOLLOW-ON TASK: Start engine (TM 9-2320-260-10) and check for leaks.

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