408 MAINTENANCE AND LUBRICATION
Caging Spring Brake Chambers
DANGER
Always start by chocking the wheels to
prevent the vehicle from rolling. Failure
to do so can result in unexpected vehicle
movement and serious personal injury or
death can occur.
DANGER
DO NOT attempt in any way to
disassemble or tamper with the spring
brake chamber. If the force stored on the
spring is suddenly released, it can cause
serious personal injury or death.
The parking spring brake chambers may be released mechanically if there is no compressed
air available.
Remove the plastic plug in the front end of the chamber. Remove the screw from the holder
in the side of the brake chamber. Insert the screw into the front hole and push in until it
bottoms. Screw into the cylinder so at least 4 to 6 threads have entered.
Install the washer and nut. Tighten the nut. This compresses the brake chamber spring and
releases the parking brake.
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