Diesel Data: Automotive Repair

Thermostatic Expansion Valve




Thermostatic Expansion Valve

WARNING: Before beginning any service procedure, REFER to Safety Warnings . Failure to follow this instruction may result in serious personal injury.

Material(s)






Exploded View










Removal

1. Recover the refrigerant. REFER to Air Conditioning (AC) System Recovery, Evacuation and Charging .

2. Position aside the TXV (Thermostatic Expansion Valve) manifold and tube assembly.

1. Disconnect the A/C (Air Conditioning) pressure transducer.

2. Remove the TXV (Thermostatic Expansion Valve) fitting nut and disconnect the fitting.

- Discard the O-ring seals.
- To install, tighten to 11 Nm (97 lb-in).





3. Remove the TXV (Thermostatic Expansion Valve) bolts and remove the TXV (Thermostatic Expansion Valve).

- Discard the O-ring seals.
- To install, tighten to 8 Nm (71 lb-in).





Installation

1. To install, reverse the removal procedure.

- Install new O-ring seals and gasket seals.

- If filtering of the refrigerant system is not to be carried out, add the correct amount of clean PAG oil to the refrigerant system. REFER to Refrigerant Oil Adding .

2. If filtering of the refrigerant system is not to be carried out, evacuate, leak test and charge the refrigerant system. REFER to Air Conditioning (AC) System Recovery, Evacuation, and Charging .