A/C Coupler O-ring: Service and Repair

TOOLS REQUIRED
^ J 38042 Dual O-ring Joint Separator
^ J 39500 A/C Refrigerant Recovery, Recycling, and Recharging (ACR4) System




1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. Service and Repair
2. Place the J 38042 on the refrigerant line directly behind the female nut of the dual O-ring joint. Hold pressure against the nut.
3. Loosen the female nut until the seal of the dual O-ring joint is broken. This procedure aids in the seal separation.
4. After the seal is broken, slightly tighten the female nut to facilitate the J 38042 removal.
5. Remove the female nut. Separate the connection.




6. Use a non-metallic tool to remove the O-rings. The use of a non-metallic tool minimizes the chance of impairing the seal surfaces.
7. Inspect the line for kinks and dents.
8. Inspect the connection for the burrs and nicks.

INSTALLATION PROCEDURE

TOOLS REQUIRED
J 39400-A Electronic Halogen Leak Detector




1. Lubricate the O-rings using 525 oil or mineral oil before installation.
2. Install the O-rings.
3. Oil the bore using a small amount of refrigerant oil before assembly.
4. Align the end forms for pilot-to-bore insertion.
5. Push the pilot and the bore together completely.

NOTE: Refer to Fastener Notice in Service Precautions.

6. Install the female nut.

Tighten
Tighten the nut to 24 N.m (18 lb ft).

7. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging.
8. Leak test the system. Refer to Leak Testing. Testing and Inspection