Spring Lock Coupling
SPECIAL SERVICE TOOL(S) REQUIREDDescription Tool Number
Spring Lock Coupling Disconnect Tool (3/8 inch) 412-026 (T81P-19623-G1)
Spring Lock Coupling Disconnect Tool (1/2 inch) 412-027 (T81P-19623-G2)
Spring Lock Coupling Disconnect Tool (5/8 inch) 412-038 (T83P-19623-C)
Spring Lock Coupling Disconnect Tool (3/4 inch) 412-040 (T85L-19623-A)
DISCONNECT
1. Remove refrigerant from system.
2. Remove clip from spring lock coupling.
3. Fit Spring Lock Coupling Disconnect Tool 412-026 (T81P-19623-G1) (3/8 inch), 412-027 (T81P-19623-G2) (1/2 inch), 412-038 (T83P-19623-C) (5/8 inch) or 412-040 (T85L-19623-A) (3/4 inch) to the coupling.
4. Close tool and push into open side of cage to expand garter spring and release female fitting.
NOTE: The garter spring may not release if the tool is cocked while pushing it into the cage opening.
5. After garter spring is expanded, pull fitting apart.
6. Remove tool from disconnected coupling.
CLEANING
1. Fabricate a cleaning tool from a 1/8 inch diameter brazing rod.
2. Cut an abrasive pad from maroon colored 3M Scotch Brite (R) with the dimensions corresponding to the coupling size.
Coupling Size Pad Size
3/8 inch 25 x 50 mm (1 x 2 inch)
1/2 inch 25 x 50 mm (1 x 2 inch)
5/8 inch 25 x 76 mm (1 x 3 inch)
3/4 inch 25 x 102 mm (1 x 4 inch)
3. Assemble the pad to the tool.
4. Coat the abrasive pad with PAG Compressor Oil Motorcraft YN-12c F7AZ-19589-DA or equivalent meeting Ford specification WSH-M1C231-B.
5. Roll the pad on the tool and install it in a variable speed motor drill.
6. Polish for 1 minute at moderate speed (less than 1500 rpm) or until the surface is clean and free of scratches or debris.
CAUTION: Maintain low speed drill rotation when inserting or removing the cleaning tool to prevent axial scratches which may cause future leaks.
7. Clean the fitting with a lint-free cloth.
8. Inspect the surface for grooves or scratches. If grooves and scratches are still present, replace the component.
9. Clean the O-ring grooves with a 300 mm (12 Inch) length of natural fiber string by looping the string around the grooves and pulling the string back and forth.
10. Remove any debris from the grooves with a lint-free cloth.
CONNECT
1. Check to make sure that garter spring is in cage of male fitting. If garter spring is missing, install a new spring by pushing it into cage opening. If garter spring is damaged, remove it from cage with a small wire hook (do not use a screwdriver) and install new spring.
2. Lubricate and install new green O-ring seals on male fittings.
NOTE: Use only the specified green O-ring seals because they are made of a special material. The use of any O-ring seal other than the specified green O-ring seal may allow the connection to leak intermittently during vehicle operation.
3. Lubricate male fitting, green O-ring seals and inside of female fitting with clean refrigerant oil.
4. Install plastic indicator ring into cage opening if indicator ring is to be used.
5. Fit female fitting to male fitting and push with a twisting motion until garter spring snaps over flared end of female fitting.
If plastic indicator ring is used, it will snap out of cage opening when coupling is connected to indicate engagement.
6. If indicator ring is not used, check coupling engagement by making sure the garter spring is over flared end of female fitting.
7. Install clip to spring lock coupling.