Expansion Block/Orifice Tube: Service and Repair

SPECIAL TOOL(S)

REMOVAL
1. Recover the refrigerant.







2. Remove the bolt.







3. Remove the nut.







4. Disconnect the front condenser to evaporator line spring lock coupling.

CAUTION: Plug all ports to prevent contamination from dirt or moisture.







5. Locate the A/C evaporator core orifice.
- For a fixed orifice tube, carry out Steps 6 and 7.
- For a broken orifice tube, carry out Steps 8 and 9.







6. Engage the special tool onto the A/C evaporator core orifice.







7. Hold the tool T-handle stationary and rotate the tool body to remove the A/C evaporator core orifice.







8. To remove a broken A/C evaporator core orifice, screw the end of the special tool into the broken A/C evaporator core orifice.







9. Hold the tool T-handle stationary and rotate the tool body to remove the broken A/C evaporator core orifice.

INSTALLATION
1. Lubricate and install the O-ring seals on the A/C evaporator core orifice.
- Use PAG oil or equivalent.







2. Place the A/C evaporator core orifice into the special tool.







3. Insert the A/C evaporator core orifice into the condenser to evaporator tube until seated.







4. Remove the special tool.
5. Install the condenser to evaporator tube.