357. Carrier Air Brake Quick Release Valve
b. Installation. Install the carrier air brake quick
Reassembly and Installation
release valve (TM 5-3810-207-20).
a. Reassembly. Reassemble the carrier air brake
quick release valve in the reverse of the numerical
Section VII. CARRIER TRAILER BRAKE VALVE
essentially of a piston which divides the interior of the
valve into two separate chambers. The chamber above
The carrier trailer brake valve is a Bendix-
the piston is always open to the atmospheric pressure,
Westinghouse type TC brake valve. It consists
while the lower chamber may or may not be subject to
air system pressure. The position of the piston is
determined by the position of the operating handle. The
nonrigid connection between the piston and handle,
through a spring, automatically maintains a selected
pressure to the trailer brakes.
359. Carrier Trailer Brake Valve Removal and
a. Removal. Remove the carrier trailer brake
valve from the crane carrier (TM 5-3810-207-20).
b. Disassembly. Disassemble the carrier trailer
brake valve in the numerical sequence as instructed on
Inspection, and Repair
(1) Clean all metal parts with an approved
(2) Clean all air passages with compressed
air, making certain that they are clean and
free of obstructions and foreign matter.
b. Inspection and Repair.
(1) Inspect the bore in the body for scoring
and scratches. The bore must be smooth
to prevent damage to the piston. Replace
a defective body.
(2) Inspect the piston for rough spots and
other damage. Check the fit of the piston
stem in the cam. The piston stem must
be a free sliding fit.
(3) Inspect the inlet and exhaust valve for
grooves, pitting, and other damage.
Check the fit of the valve in the adjusting
ring nut. The valve must slide freely
without binding. Replace a defective inlet
Figure 100. Carrier air brake quick release valve
assembly, exploded view.