Coupler HVAC: Service and Repair

SPECIAL SERVICE TOOL(S) REOUIREO

Coupling - Disconnect

1. Discharge refrigerant from system with a refrigerant recycling machine. Fit Spring Lock Coupling Disconnect Tools T81P-19623-G1 (3/8-inch), T81P-19623-G2 (1/2-inch), T83P- 19623-C (5/8-inch) or T85L- 19623-A (3/4-inch) to the coupling.

2. NOTE: The garter spring may not release if the tool is cocked while pushing it into the cage opening.

Close tool and push into open side of cage to expand garter spring and release female fitting.

3. After garter spring is expanded, pull fitting apart.

4. Remove tool from disconnected coupling.

Coupling - Connect

1. Make sure 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 a new spring.

2. Clean all dirt or foreign material from both pieces of coupling.

3. Lubricate and install new green 0-ring seals on male fitting.

Use only the specified green 0-ring seals as they are made of a special material. The use of any 0-ring seal other than the specified green 0-ring seal may allow the connection to leak intermittently during vehicle operation. Refer to service parts list.

4. Lubricate male fitting and 0-rings and inside of female fitting with clean refrigerant oil.

5. Install plastic indicator ring into cage opening if indicator ring is to be used.

6. Fit female fitting to male fitting and push 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.

7. If indicator ring is not used, ensure coupling engagement by visually checking to verify garter spring is over flared end of female fitting.









Service Parts List