FAIL-SAFE CHAMBER BRAKES RELEASE
THIS WP COVERS:
Reserve Release, Manual Release, Follow-On Task
Tools and Special Tools
Tool kit, general mechanic's (item 4, WP 0156 00)
Semitrailer disconnected from prime mover (refer
to WP 0007 00)
Semitrailer grounded (refer to WP 0007 00)
There are four air brake chambers and they are released
the same way. This procedure covers one air
Chock semitrailer wheels to prevent movement of semitrailer.
Push brake release plunger (1) on roadside of semitrailer to release fail-safe brakes.