Service Port HVAC: Service and Repair

Service Ports Replacement

Tools Required

J39400-A Halogen Leak Detector

Removal Procedure





1. Recover the refrigerant from the air conditioning (A/C) system. Refer to Refrigerant Recovery and Recharging.
2. Remove the A/C refrigerant valve (2).
3. Remove and discard the O-ring seal (3).

Installation Procedure






Important: DO NOT allow any of the mineral base 525 viscosity oil on the NEW O-ring to enter the refrigerant system.

1. Lightly coat the NEW O-ring seal with mineral base 525 viscosity refrigerant oil.
2. Install the O-ring seal (3) onto the valve if necessary.

Notice: Refer to Fastener Notice.

3. Install the A/C refrigerant valve (2).

Tighten the valve to 11 N.m (98 lb in).

4. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging.
5. Leak test the fitting valve area using the J39400-A.
6. Install the service port cap (1).