Spring Lock Coupling: Connect

WARNING: This page is about a different car, the 2003 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

Install the A/C tube lock coupling spring.

Fig 1: Installing A/C Tube Lock Coupling Spring
Courtesy of FORD MOTOR CO.
Lubricate the inside of the coupling with PAG Refrigerant Compressor Oil (R-134a Systems) F7AZ-19589-DA (Motorcraft YN-12-C) or equivalent meeting Ford specification WSH-M1C231-B.

Fig 2: Lubricating Inside Of Coupling With PAG Refrigerant Compressor Oil
Courtesy of FORD MOTOR CO.

CAUTION: Use only new green O-ring seals. The use of any O-ring seals other than specified may result in intermittent leakage during vehicle operation.

NOTE: Some connections may have two or three O-ring seals.

Install the O-ring seals.
1. Lubricate the O-ring seals with PAG Refrigerant Compressor Oil (R-134a Systems) F7AZ-19589-DA (Motorcraft YN-12-C) or equivalent meeting Ford specification WSH-M1C231-B.
  
  Fig 3: Lubricating O-Ring Seals With PAG Refrigerant Compressor Oil
  Courtesy of FORD MOTOR CO.
Connect the spring lock coupling fittings with a twisting motion until the A/C tube look coupling spring snaps over the flared end of the female fitting.

Fig 4: Connecting Spring Lock Coupling Fittings With Twisting Motion
Courtesy of FORD MOTOR CO.
Install the A/C tube lock coupling clip.

Fig 5: Installing A/C Tube Lock Coupling Clip
Courtesy of FORD MOTOR CO.
Charge the system. Refer to AIR CONDITIONING (A/C) SYSTEM EVACUATION AND CHARGING .