AIR BRAKE CHAMBER REPLACEMENT.
This task covers:
a. Leakage test
Lock washer (2)
General Safety Instructions:
Tool kit, mechanics general,
Dry cleaning solvent is toxic and
Avoid prolonged breathing of vapors, void
skin contact, and keep away from open
Coat air chamber flange with soap and water solution to all air fittings and inspect for leaks.
If any leakages are detected, tighten securing hardware sufficiently to stop leaks. No
leakage is allowable.
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.
Open dump valve on all air reservoirs and allow air pressure to bleed off.
Loosen locknut (6).
Back off slack adjuster nut (5) until it separates from slack adjuster clevis (4).
Turn adjusting screw counterclockwise to release tension on slack adjuster.
Tag and disconnect two air lines (1) from air chamber (7).
Remove two nuts (3) and lock washers (2) and air chamber (7) from axle. Discard lock
Clean mud and dirt from exposed surfaces with water and a stiff brush.