TM 9-2330-386-14&P
4-31 UNCAGING SPRING BRAKE CHAMBERS.
This task covers service.
Equipment
Condition
INITIAL SETUP
Reference
Tools
General mechanics tool kit
Para. 2-29 Spring brake caged.
Spring brake tool
WARNING
C a g e d spring in bottom chamber is under 2,500 pounds of
t e n s i o n . Use extreme care when performing maintenance.
Do not position yourself in front of, or in line with the
s p r i n g b r a k e a s s e m b l y . P e r f o r m necessary maintenance from
the side.
Read all manufacturer's warning labels before uncaging.
Inspect clamp bands, castings, and fasteners for external
d a m a g e . If damage to these items is evident, do not
a t t e m p t u n c a g i n g p r o c e d u r e . R e f e r to paragraph 4-32 for
b r a k e chamber replacement.
Failure to observe these warnings could result in serious
personal injury and damage to equipment.
a. C h o c k w h e e l s t o p r e v e n t s e m i t r a i l e r f r o m r o l l i n g .
b . S l o w l y loosen nut (1) on spring
b r a k e tool (3). Remove nut (1) and
washer (2).
c. T u r n s p r i n g b r a k e t o o l ( 3 ) l / 4 - t u r n
counterclockwise to unlock from
m a n u a l release position. Remove
spring brake tool (3).
d . I n s t a l l dust cap (4) on brake chamber
(6).
e . I n s e r t spring brake tool (3) in mounting
hole (5) on either side of brake chamber
(6). Secure spring brake tool (3) with
washer (2) and nut (1).
through e. above for remaining brake chambers.
f . R e p e a t steps b.
g . R e m o v e wheel chocks and stow in brackets.
TASK ENDS HERE
4-57
