Expansion Block/Orifice Tube: Service and Repair

EVAPORATOR CORE ORIFICE

Special Tool(s)

Special Tool(s):

Removal
1. Recover the refrigerant.
2. Disconnect the evaporator inlet fitting.
- Discard the O-ring seals.

3. Inspect the evaporator core orifice for damage before attempting to remove it from the evaporator core inlet line.
4. If the evaporator core orifice is intact, engage the special tool. Hold the T-handle stationary while rotating the tool body to remove the evaporator core orifice.







5. If the evaporator core orifice is broken, screw the end of the special tool into the broken orifice. Hold the T-handle stationary while rotating the tool body to remove the evaporator core orifice.







Installation
1. Lubricate the evaporator core orifice O-ring seals with clean PAG oil and install the evaporator core orifice using the special tool.







2. Install new O-ring seals and connect the evaporator inlet fitting.
3. Evacuate, leak test and charge the refrigerant system.