TM 5-3825-229-14&P
3-9.
CAGING AND UNCAGING SPRING BRAKE CHAMBERS (Cont)
a.
Inspection.
(1) Inspect brake chamber clamp bands, castings and fasteners for external damage.
(2) If damage is evident, do not attempt uncaging procedure.
(3) Refer to para. 4-28 for removal procedures.
b.
Caginq Brake Chambers.
NOTE
This procedure will allow for moving the
semi-trailer in the event of a brake
system failure which has resulted in the
brakes being locked.
(1) Block wheels.
(2) Remove plug (3) from brake chambers.
(3) Remove nut (5) and washer (6). Remove tool
(1) from mounting hole (2) on spring brake
chamber (4).
(4) Insert tool (1) through opening in spring brake
chamber. Turn tool (1) 114 turn clockwise until
it contacts mechanical stop.
(5) Install washer (6) and nut (5) on tool (1) and
tighten until it stops. Repeat above procedure
for remaining brake chambers.
c.
Uncaqinq Brake Chambers.
(1) Slowly loosen nut (5) and washer (6) on spring brake tool (1). Remove nut (5) and washer (6).
(2) Turn brake tool (1) 1/4 turn counterclockwise to unlock from manual release position. Remove spring brake
tool (1).
(3) Install plug (3) on spring brake chamber (4).
(4) Insert spring brake tool (1) in mounting hole (2) on side of brake chamber (4). Secure tool (1) with washer (6)
and nut (5).
(5) Repeat steps (1) through (4) for remaining spring brake chambers.
(6) Remove and stow chock blocks.
3-24
