Tools Required

J 39400-A Halogen Leak Detector

1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging .



2. Disconnect the A/C refrigerant hose.

•	For compression style fittings use a back up wrench on the fitting (2) and loosen the fitting nut (1).

•	For banjo style fittings remove the bolt retaining the banjo type fitting.

Important: Cap or tape the open A/C refrigerant hose and the A/C refrigerant component immediately.

3. Disconnect the A/C hose from the A/C component.
4. Cap or tape the A/C hose and the A/C component to prevent system contamination, discard the O-ring seals.

1. Remove the cap or tape from the A/C hose and the A/C component.
2. Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the A/C refrigerant hose and the A/C refrigerant component.
3. Lightly coat the new O-ring seal with mineral base 525 viscosity refrigerant oil.

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

4. Carefully slide the new O-ring seal onto the A/C refrigerant hose.



5. The O-ring seal must be fully seated.



6. Connect the A/C refrigerant hose.

•	For compression style fittings use a back up wrench on the fitting (2) and tighten the fitting nut (1) to specification.

•	For banjo style fittings install the bolt retaining the banjo type fitting and tighten to specification.

7. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
8. Leak test the fittings of the component using J 39400-A .