Pressure Relief Valve: Installation
NOTE:
Use R-12 refrigerant oil (mineral) to lubricate O-rings. Use of R-134a (PAG) oil will cause premature corrosion of fitting joints.
- Lubricate the pressure relief valve O-ring with new R-12 mineral compressor oil.
- Install the pressure relief valve to the compressor hose. See Fig 1. Tighten the pressure relief valve to 89 INCH Lbs. (10 N.m).
- Lower the vehicle.
- Evacuate and charge the A/C system. See RECOVERY/EVACUATION & RECHARGING in GENERAL SERVICING PROCEDURES article in GENERAL SERVICING.
- Test the affected A/C joint for leaks using a leak detector. See LEAK TESTING in GENERAL SERVICING PROCEDURES article in GENERAL SERVICING.
