Air Conditioning O-Ring Seal Replacement

Air Conditioning O-Ring Seal Replacement

Removal Procedure





1. Disassemble the A/C refrigerant components. Refer to the appropriate repair procedure

* 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.

2. Remove the O-ring seal from the A/C refrigerant component.

3. Inspect the O-ring seal for signs of damage.

4. Inspect the A/C refrigerant components for damage or burrs. Repair if necessary.

5. Discard the O-ring seal.

Installation Procedure

1. Inspect the new O-ring seal for any sign or cracks, cuts, or damage. Replace if necessary.

2. Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the A/C refrigerant components.

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


3. Lightly coat the new O-ring seal with mineral base 525 viscosity refrigerant oil.

Important:
DO NOT reuse O-ring seals.


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





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





6. Assemble the A/C components.

Refer to the appropriate repair procedure.

* 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.