Expansion Valve: Service and Repair

Remove or Disconnect

1. Recover refrigerant. Refer to "Refrigerant Recovery and Recycling, Adding Oil, Evacuating and Recharging Procedures."
2. Evaporator tube.
3. Compressor and condenser hose fitting at thermostatic expansion valve (6).
^ Discard seal (16).
4. Bolts/screws (29).
5. Thermostatic expansion valve (6).
6. Seals (15) from evaporator (5).
^ Discard seals (15).

Install or Connect

1. Seals (15) to evaporator (5).
^ Lightly coat seals with mineral base 525 viscosity refrigerant oil.
2. Thermostatic expansion valve (6).
3. Bolts/screws (29).

Tighten

^ Bolts/screws (29) to 7 N.m (62 lb. in.).

4. Clean compressor and condenser hose fitting with mineral base 525 viscosity refrigerant oil.
^ Do not allow refrigerant oil to enter A/C system.
5. Seal (16) to compressor and condenser hose (7).
^ Lightly coat seal with mineral base 525 viscosity refrigerant oil.
6. Compressor and condenser hose fitting to thermostatic expansion valve (6).

Tighten

^ Compressor and condenser hose fitting to 37 N.m (27 lb. ft.).

7. Evaporator tube.
8. Charge A/C system. Refer to "Refrigerant Recovery and Recycling, Adding Oil, Evacuating and Recharging Procedures."
9. Leak-test fittings. Refer to "Leak-Testing the Refrigeration System."