AIRBRAKE SYSTEM VALVES REPLACEMENT

TM 9-2320-312-24-1

AIRBRAKE SYSTEM VALVES REPLACEMENT

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THIS WORK PACKAGE COVERS

Rear Brake Relay Valve: Removal, Installation

Cab-Mounted Tractor Protection Valve: Removal,

Installation

SR-1 Modulating Valve: Removal, Installation

Rear Tractor Protection Valve: Removal, Installation

Emergency Brake Relay Valve: Removal, Installation

Front Brake Relay Valve: Removal, Installation

INITIAL SETUP

Materials/Parts - Continued

Maintenance Level

Unit

Tag, marker (Item 58, WP 0165 00)

Nut, lock (P/N 21NE048) (2) (rear brake relay

MAC Reference

valve)

Group 150

Nut, lock (P/N 21NE048) (2) (SR-1 modulating

RPSTL Reference

valve)

Group 150, Figures 3, 4, and 5

Washer, lock (P/N 361-10) (2) (either tractor pro-

tection valve)

Tools and Special Tools

References

Tool kit, general mechanic's (Item 35, WP 0166 00)

WP 0066 00

Materials/Parts

Equipment Condition

Compound, pipe sealing (Item 20, WP 0165 00)

Wheels blocked

Detergent (Item 23, WP 0165 00)

Air system drained (TM 9-2320-312-10)

Strap, tiedown (Item 57, WP 0165 00)

WARNING

DO NOT disconnect any air lines or fittings unless engine is shut down and air system pressure is relieved.

Failure to follow this warning could result in serious injury to personnel.

NOTE

Tag air lines and note position of all fittings to ensure correct installation.

Remove tiedown straps as required and discard. Ensure new tiedown straps are used on installation, to

properly support air lines.

Refer to WP 0066 00 for information on removing and installing air lines to push-in fittings.

CAB-MOUNTED TRACTOR PROTECTION VALVE REMOVAL

Tilt cab (TM 9-2320-312-10).

NOTE

Top port of valve is marked EMERGENCY. Bottom port is SERVICE.

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