TM 9-2330-379-14&P
MANUAL RELEASE OF SPRING BRAKE (CAGING)
This task covers:
a. Manual release of spring brake (page 4-93)
INITIAL SETUP
Tools
Materials/Parts
General mechanics tool set
Caging tool
Equipment Conditions
Wheels chocked and rear dolly properly
supported.
Air reservoir drained (page 2-2).
ACTION
LOCATION
ITEM
REMARKS
SPRING BRAKE RELEASE
NOTE
It should only be necessary to manually cage the spring brake(s)
if the air pressure in the parking brake (7) air reservoir is below
80 psi.
NOTE
If a source of pressurized air is available, the parking brake air
reservoir can be pressurized sufficiently (via the air reservoir (2)
fill valve on the parking brake lever) to release the spring brake.
1
Parking
Air reservoir
If practical, pressurize parking brake air
brake lever
fill valve (2)
reservoir sufficiently (greater than 80
(1)
psi) to release spring brakes.
2
Tool box (3) or
Caging tool (5)
Remove caging tool (5) from tool box (3)
spring brake
or storage slot (4) on side of spring
storage slot (4)
brake unit.
3
Rear wheel
Caging tool (5)
a.
Insert caging tool (5) in hole in rear
(6)
and spring brake
of spring brake unit (7).
unit (7)
b.
Rotate caging tool clockwise 18 to 21
full turns to manually release spring
brake by caging power spring.
4-93
