Diesel Data: Automotive Repair

High Pressure Safety Valve HVAC: Service and Repair

AIR CONDITIONING (A/C) PRESSURE RELIEF VALVE

REMOVAL

NOTE: Installation of a new suction accumulator is not required when repairing the air conditioning system except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.

1. Recover the refrigerant.
2. Raise the vehicle.







3. Remove the A/C compressor pressure relief valve.
- Discard the O-ring seal.

INSTALLATION
1. To install, reverse the removal procedure.
- Install a new O-ring seal lubricated in clean PAG oil.