Removing and Installing Expansion Valve For Auxiliary Air Conditioner

Removing and Installing Expansion Valve for Auxiliary Air-Conditioning Unit







Removing Expansion Valve
- Remove refrigerant by suction.
- Observe safety regulations when working with refrigerant. Refer to, Safety regulations for working on air-conditioned vehicles and dealing with refrigerant R134a.
- Remove the side lining at rear.







1. Undo two fastening screws -1- for refrigerant lines on expansion valve.
2. Pull out the refrigerant lines from the expansion valve and close with plugs.







3. Undo the two fastening screws for the expansion valve -2- and remove expansion valve

Installing Expansion Valve

NOTE:
- Before the expansion valve is re-installed, the O-rings of the refrigerant lines must be checked for damage and replaced if necessary.
- Wet the O-rings of the refrigerant lines with refrigerant oil.







1. Carefully push expansion valve onto refrigerant lines from evaporator - do not tilt.
2. Insert both fastening screws -2- and tighten them. Refer to tightening torques.







3. Carefully push refrigerant lines onto expansion valve (do not tilt) and tighten with the two fastening screws -1-. Refer to tightening torques.

Tightening Torques