A/C Coupler O-ring: Service and Repair

REMOVAL PROCEDURE

TOOLS REQUIRED
^ J 38042 Dual O-ring Joint Separator
^ J 39500-B Air Conditioning Refrigerant Recovery Recycling and Recharging (ACR4) System




1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging.
2. Place the J 38042 on the refrigerant line directly behind the dual O-ring joint female nut. Hold pressure against the nut.
3. Back off the female nut until the dual O-ring joint seal is broken. Breaking the dual O-ring joint seal aids in seal separation.
4. After the seal is broken, slightly tighten the female nut in order to facilitate tool removal.
5. Remove the J 38042
6. Remove the female nut.
7. Separate the connection.

IMPORTANT: Use non-metallic tools in order to prevent damage to the seal surfaces.




8. Remove the O-rings.
9. Inspect the line for kinks and dents.
10. Inspect the connection for burrs and nicks

INSTALLATION PROCEDURE

TOOLS REQUIRED
J 39400-A Electronic Halogen Leak Detector




1. Lubricate the O-rings with 525 refrigerant oil.
2. Install the O-rings.
3. Oil the bore using a small amount of refrigerant oil.
4. Push the components together completely.

NOTE: Refer to Fastener Notice in Service Precautions.

5. Assemble the female nut.

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

6. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging.
7. Using the J 39400-A, leak test the A/C system. Refer to Leak Testing.