F 250 4WD Super Duty V10-6.8L VIN Z CNG (2003)
1. Install the A/C tube lock coupling spring.
2. Lubricate the inside of the coupling with PAG Refrigerant Compressor Oil (R-134a Systems) or equivalent.
3. Install the O-ring seals.
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Lubricate the O-ring seals with PAG Refrigerant Compressor Oil (R-134a Systems) or equivalent.
CAUTION: Use only the new O-ring seals. The use of any O-ring seals other than those specified in the Ford Master Parts Catalog may result in
intermittent leakage during vehicle operation.
4. Connect the spring lock coupling fittings with a twisting motion until the A/C tube lock coupling spring snaps over the flared end of the female
fitting.
