Suzuki XL7 2007 Service Manual page 1908

7A-94 Heating, Ventilation and Air Conditioning:
O-Ring 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 to help
determine the root cause of the failure.
4. Inspect the A/C refrigerant components for damage
or burrs. Repair if necessary.
NOTE
Cap or tape the open A/C refrigerant
components immediately to prevent system
contamination.
5. Cap or tape the A/C refrigerant components.
6. 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. Remove the cap or tape from the A/C refrigerant
components.
3. Using a lint-free clean, dry cloth, carefully clean the
sealing surfaces of the A/C refrigerant components.
NOTE
DO NOT allow any of the mineral base 525
viscosity refrigerant oil on the new O-ring
seal to enter the refrigerant system.
4. Lightly coat the new O-ring seal with mineral base
525 viscosity refrigerant oil.
NOTE
DO NOT reuse O-ring seals.
5. Carefully slide the new O-ring seal onto the A/C
refrigerant component.
6. The O-ring seal must be fully seated.
7. 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.