TM 9-2330-390-14&P
4-56.
CAGING AND UNCAGING BRAKES (Con’t).
• DO NOT cage spring In “spring” rear dolly airbrake chamber until wheels have been
securely chocked. Once rear dolly airbrake chamber spring is caged, dolly set la
without emergency/parking brakes and can roll. Failure to chock wheels may result
in serious Injury or death to personnel.
• DO NOT attempt to cage brakes if rear dolly airbrake chamber shows any signs of
structural damage. Failure to follow this warning may cause forceful release of the
spring chamber and its contents, resulting in serious injury or death to personnel.
NOTE
With both the parking and emergency breakaway systems, loss of air pressure causes
brakes to apply. Return of air pressure allows brakes to release. Brakes that have been
applied due to air pressure loss can be manually released (caged) to allow movement
of dolly set or in preparation for maintenance.
a . C A G I N G
1.
2.
3.
4.
Remove dust plug (6) from key hole (7) in rear of
airbrake chamber (1).
Remove nut (5) washer (4) and caging stud (2)
from storage slot (3). Install caging stud in key
hole (7).
Turn caging stud (2) clockwise one-quarter turn.
Pull on stud to ensure that stud crosspin is proper-
ly seated in pressure plate inside airbrake cham-
ber (1).
Install washer (4) and nut (5) fingertight on caging
stud (2).
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