AIR HORN AND VALVE REPLACEMENT -699580782

TM 9-2320-363-20-2

AIR HORN AND VALVE REPLACEMENT

This task covers:

a. Removal

b. Cleaning/Inspection

c. Installation

INITIAL SETUP

Applicable Configuration:

General Safety Instructions:

All except M917A1 and M917A1 w/MCS

WARNING

Tools and Special Equipment:

Make sure all air lines and

fittings are clear of debris.

Tool Kit, SC 5180-90-CL-N26

Make sure excess pipe

sealant compound does not

Materials/Parts:

enter air lines or fittings.

Failure to do so coul d result

Nut, Lock (3)

in equipment failure and/or

injury to personnel.

Seal, Rubber (2)

Sealant compounds can burn

Compound, Pipe

Appendix C, Item 8

easily, can give off harmful

Sealing

vapors, and are harmful to

skin and clothing. To avoid

Equipment Condition:

injury or death, keep away

from open fire and use in

Reference

Condition Description

well-ventilated area. If sealant

compound gets on skin or

Page 2-28

Air System Drained

clothing, wash immediately

with soap and water.

Page 4-740

Head Liners Removed

REMOVAL

NOTE

Tag all tubes prior to disconnecting to aid in connecting.

REMOVE SCREW (1), TWO SCREWS (2), AND VALVE (3).

DISCONNECT THREE TUBES (4) FROM VALVE (3).

REMOVE TEE (5) AND ELBOW (6) FROM VALVE (3).

DISCONNECT TUBE (7) AND REMOVE CONNECTOR (8) AND ELBOW (9) FROM AIR HORN (10).

REMOVE THREE LOCK NUTS (11), THREE WASHERS (12), THREE SCREWS (13), THREE WASHERS (14),

AIR HORN (10), RUBBER SEAL (15), RUBBER SEAL (16), AND BRACKET (17). DISCARD LOCK NUTS AND

RUBBER SEALS.

CLEANING/INSPECTION

Clean and inspect all parts in accordance with Chapter 2.

4-566 Change 3