Expansion Block/Orifice Tube: Service and Repair

REMOVE OR DISCONNECT
1. Discharge and recover refrigerant from the system.

NOTE: The expansion tube is located in the evaporator core inlet line.

2. Condenser to the evaporator line at the evaporator inlet.

CAUTION: Cap or plug the open line.

3. Expansion tube from the evaporator core inlet line.
^ Use needle-nose pliers to remove the core.
4. Expansion tube seal (O-ring) from the core inlet line.

INSTALL OR CONNECT
1. Expansion tube seal (0-ring) to the core inlet line.
^ Use new seal (0-ring) coated with clean refrigeration oil.
^ Insert the short screen and end of the orifice into the evaporator inlet line.
2. Expansion tube to the evaporator core inlet line.
3. Condenser to the evaporator line at the evaporator inlet.
4. Evacuate, charge and check the system.