Expansion Block/Orifice Tube: Service and Repair
EVAPORATOR CORE ORIFICESpecial Tool(s):
Special tool(s)
Removal
1. Remove the condenser to evaporator tube.
- For a fixed orifice tube, carry out Steps 2 and 3.
- For a broken orifice tube, carry out Steps 4 and 5.
2. Remove the vacuum reservoir tank.
3. Engage the special tool to the A/C evaporator core orifice.
4. Hold the tool T-handle stationary and rotate the tool body to remove the A/C evaporator core orifice.
5. To remove a broken A/C evaporator core orifice, screw the end of the special tool into the broken A/C evaporator core orifice.
6. 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.
2. Place the A/C evaporator core orifice into the special tool.
3. Insert the A/C evaporator core orifice into the A/C evaporator core inlet tube until seated.
4. Remove the special tool.
5. Install the vacuum reservoir tank.
6. Install the condenser-to-evaporator tube.