Service Port HVAC: Service and Repair

SERVICE PORT VALVE CORES

REMOVAL

WARNING: REFER TO THE APPLICABLE WARNINGS AND CAUTIONS FOR THIS SYSTEM BEFORE PERFORMING THE FOLLOWING OPERATION.

1. Remove the protective cap from the low and/or high side service port as necessary
2. Recover the refrigerant from the refrigerant system .
3. Using a standard Schrader-type valve core tool, remove the valve core from the service port as required
4. Install a plug in or tape over the opened service port

INSTALLATION
1. Lubricate the A/C service port valve core with clean refrigerant oil prior to installation Use only refrigerant oil of the type recommended for the compressor in the vehicle
2. Remove the tape or plug from the A/C service port
3. Using a standard Schrader-type valve core tool, install and tighten the replacement valve core into the A/C service ports as required

CAUTION: A valve core that is not fully seated in the A/C service port can result in damage to the valve during refrigerant system evacuation and charge Such damage may result in a loss of system refrigerant while uncoupling the charge adapters

4. Evacuate the refrigerant system .
5. Charge the refrigerant system.
6. Reinstall the protective cap onto the A/C service ports as required.