Section LX. CARRIER AIR BRAKE RELAY ASSEMBLY
526. General
The carrier air brake relay valve assembly is located
in the carrier air brake system between the air receiver
tanks and the rear air brake chambers. The relay valve
speeds up the application and release of the rear wheel
brakes. It is controlled by the brake control valve and
keeps the air pressure in the rear brake chambers the
same as the pressure being delivered by the brake control
valve.
527. Carrier Air Brake Relay Valve Assembly Removal
and Disassembly
a. Removal. Remove the carrier air brake relay
valve assembly (para. 238).
b. Disassembly. Disassemble the carrier air brake
relay valve assembly in numerical sequence as illustrated
on figure 256.
528. Carrier Air Brake Relay Valve Assembly
Cleaning, Inspection, and Repair
a. Cleaning. Clean all parts with an approved
cleaning solvent and dry thoroughly.
b. Inspection ad Repair.
Inspect all parts for
excessive wear and damage. Replace or repair all
defective parts.
529. Carrier Air Brake Relay Valve Assembly
Reassembly and Installation
a. Reassembly. Reassemble the carrier air brake
relay valve assembly in the reverse of the numerical
sequence as illustrated on figure 256.
b. Installation. Install the carrier air brake relay
valve assembly (para. 238).
Figure 256. Carrier air brake relay valve assembly,
exploded view.
Section LXI. CARRIER STEERING HYDRAULIC PUMP ASSEMBLY
belt driven from the carrier water pump and fan pulley.
530. General
The output
The carrier steering hydraulic pump assembly is
mounted on the front end of the carrier 288 engine
cylinder block, just behind the fan assembly. The pump is
AGO 6819A
288
