Expansion Block/Orifice Tube: Service and Repair

EVAPORATOR CORE ORIFICE

Special Tool(s):

Special Tool(s)







Removal

NOTE:
- Installation of a new suction accumulator is not required when repairing the air conditioning system except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.
- New O-ring seals, lubricated in clean mineral oil, must be installed before reconnecting any A/C fitting which has been disconnected.

1. Remove the orifice evaporator inlet line.
2. Inspect the evaporator core orifice for damage before attempting to remove it from the line.







3. 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-rings with clean mineral oil and install the evaporator core orifice using the special tool.

2. NOTE: New O-ring seals, lubricated with clean mineral oil, must be installed before reconnecting any A/C fitting which has been disconnected.

Install the orifice evaporator inlet line.
1 If not filtering the A/C system, lubricate the refrigerant system with the correct amount of clean PAG oil.
2 Evacuate, leak test and charge the refrigerant system.