Section LI. CARRIER MOISTURE EJECTOR VALVE ASSEMBLY
490. General
The carrier moisture ejector valve assembly is a small
relay valve with no delivery ports. A line from the bottom
of the dry tank to the inlet port of the ejector carries a
combination of air, moisture, and sludge into the area in
the body between the seat, that the movable seat seals
against, and the 0-ring. With each brake application, air
enters the ejector through the application line port. This
application air forces the actuator down and pushes the
valve away from its seat on the casting, allowing about a
spoonful of moisture to be admitted to the area under the
0-ring.
Upon release of the brake application, the
actuator is forced up, allowing the seat to seal off any
further flow of moisture or air from the tank and opening
the exhaust port through the center of the seat. This
permits moisture to flow out.
491. Carrier Moisture Ejector Valve Assembly
Removal and Disassembly
a. Removal. Remove the carrier moisture ejector
valve assembly (para. 237).
b. Disassembly. Disassemble the carrier moisture
ejector valve assembly in numerical sequence as
illustrated on figure 246.
492. Carrier Moisture Ejector Valve Assembly
Cleaning, Inspection and Repair
a. Cleaning. Clean all parts with an approved
cleaning solvent and dry thoroughly.
b. Inspection and Repair. Inspect all parts for
excessive wear and damage. Replace all defective parts.
493. Carrier Moisture Ejector Volvo Assembly,
Reassembly and Installation
a. Reassembly. Reassemble the carrier moisture
ejector valve assembly in the reverse of
Figure 246. Carrier moisture ejector valve assembly,
exploded view.
the numerical sequence as illustrated on figure 246.
b. Installation. Install the carrier moisture ejector
valve assembly (para. 237).
AGO 6819A
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