2-16. RELEASE/APPLY PARKING BRAKES (CAGING BRAKES).
Release Parking Brake.
Brake chamber contains a spring that is under great pressure. Never work directly behind
brake chamber or attempt to disassemble brake chamber. Serious injury or death could
result to personnel.
If top of brake chamber is clogged with mud, sand, or dirt, do not proceed with caging
operation unless brake chamber can be cleared or serious injury or death could result to
Trailer wheels must be chocked while caging brake chambers or serious injury or death
could result to personnel.
Chock wheels of trailer, (Para 2-20).
Remove nut (1) and washer (2) from caging bolt (3) and remove caging bolt.
Remove protective cap (4) on rear portion of brake chamber (5).