Expansion Valve: Service and Repair

Thermostatic Expansion Valve (TXV) Replacement

Service repair no - 82.25.01

Removal
1. Disconnect battery negative lead.
2. Depressurise air conditioning system. Service and Repair
3. Remove clamp securing air conditioning pipes to bulkhead.





4. Remove bolt securing pipe clamp to TXV. Position clamp aside.
5. Release pipes from TXV. Position aside. Discard 'O' rings. Plug pipes and connections.
6. Remove 2 bolts securing TXV to evaporator.
7. Remove TXV.
8. Remove 'O' rings and discard. Plug evaporator and TXV ports.





Refit
9. Remove plugs.
10. Ensure all mating faces are clean.
11. Lubricate new 'O' rings with compressor oil. Fit to pipes.
12. Position TXV to evaporator pipes.
13. Ensure TXV is fully engaged to evaporator pipes. Secure with bolts.
14. Engage pipes to TXV. Secure pipe clamp with bolt.
15. Secure air conditioning pipes to bulkhead with clamp.
16. Evacuate and recharge air conditioning system. Service and Repair
17. Reconnect battery negative lead.