Brake Air Chamber

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TM-9-2330-380-14-P Semitrailer Van: Electronic Tactical 12-Ton 4-Wheel XM1063 (NSN 2330-01-224-9244) and M129A4 (NSN 2330-01-372-5642) Manual

Removal

TM 9-2330-380-14&P

4-46. Brake Air Chamber

This task covers:

a. Leakage test

b. Operating test (XM1063 Only)

c. Removal

d. Cleaning

e. Inspection

f. Installation

Initial Setup:

Tools/Test Equipment:

EquipmentConditions:

General mechanic's tool kit (item 01, Appendix B)

Materials/Supplies:

Drycleaningsolvent(item3,AppendixE)

Teflon tape (item 12, Appendix E)

Brush (item 15, Appendix E)

Rags (item 14, Appendix E)

a. Leakage test

1. Coat air chamber flange with soap and water solution to all air fittings and inspect for leaks.

2. If any leakage is detected, tighten securing hardware sufficiently to stop leaks. No leakage is allowable.

3. Check non-pressure side of air chamber for leaks by applying soap and water solution to holes in

chamber body. If leakage exists, replace air chamber.

b. Operating test (XM1063 Only)

1. Check yoke pin adjustment (para. 4-50).

2. Dimension from outside of non-pressure side of air chamber to center of yoke pin must be 7.5 inches,

plus or minus 1/8 inch.

3. If the 7.5 inch dimension cannot be obtained, replace yoke pin, air chamber or slack adjuster (para. 4-

4-74