Section III. CARRIER REAR AIR BRAKE CHAMBER ASSEMBLY
b. Disassembly. Disassemble the carrier rear air
322. General
brake chamber assembly in numerical sequence as
The carrier's four rear air brake chamber assemblies
illustrated on figure 91.
each consist basically of two circular housings called
plates, a push rod assembly, and a diaphragm. The
purpose of the brake chambers is to convert the energy
324. Carrier Rear Air Brake Chamber Assembly
of compressed air to mechanical force and motion
Cleaning, Inspection, and Repair
necessary to operate the rear brakes. The push rod
a. Cleaning. Clean all parts with an approved
assembly is connected to the slack adjusters, located on
cleaning solvent and dry thoroughly.
the rear axle housings, which operate the brake bands
b. Inspection and Repair. Inspect all parts for
through a cam action. The air pressure enters the brake
excessive wear or damage. Replace or repair all
chamber behind the diaphragm, and as the air pressure
defective parts.
is increased, the force of the push rod assembly is also
increased. When the air pressure is released from the
325. Carrier Rear Air Brake Chamber Assembly
brake chamber, a spring returns the diaphragm and
Reassembly and Installation
push rod assembly to the released position.
a. Reassembly. Reassemble the carrier rear air
brake chamber assembly in the reverse of the numerical
323. Carrier Rear Air Brake Chamber Assembly
sequence as illustrated on figure 91.
Removal and Disassembly
b. Installation. Install the carrier rear air brake
a. Removal. Remove the carrier rear air brake
chamber assembly (TM 5-3810-207-20).
chamber assembly (TM 5-8810-207-20).
1
Nut, special, 5/16-24 x in. (2 rqr)
5
Pressure plate
9
Spring
2
Bolt, special, 5/16-24 x in. (2 rqr)
6
Ferrule (2 rqr)
10
Push rod
3
Clamping ring
7
Diaphragm
11
Seal
4
Plug, pipe, 3/8 in.
8
Push plate
12
Non-pressure plate
Figure 91. Carrier rear air brake chamber assembly, exploded view.
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