4-41. MASTER CYLINDER AND AIRBRAKE CHAMBER MAINTENANCE.
This Task Covers:
Air Chamber Leakage Test
l Semitrailer coupled to towing vehicle (para 2-10).
l Brake fluid (Item 3, Appendix E)
l Dishwashing compound (Item 6, Appendix E)
l Rags (Item 11, Appendix E)
l General mechanics tool kit
l Antiseizing tape (Item 16, Appendix E)
l Six Iockwasher
Personnel Required: Two
AIR CHAMBER LEAKAGE TEST
With brakes applied, coat pressure side of
airbrake chamber (1) with soap and water.
Inspect airbrake chamber (1) for bubbles, which
indicate leakage. If leakage is detected, tighten
flange nuts (2) evenly until leakage stops.
Coat holes on non-pressure side of airbrake
chamber (1) with soap and water and inspect for
leakage, If leakage is detected, replace airbrake
Uncouple semitrailer from towing vehicle (para 2-11).
Open draincock on air reservoir and release air pressure.
Disconnect air line (12) from elbow (11) in airbrake chamber (1).