heres the how to out of alldata hopefully it helps
Line & Tube Assembly Replacement
Line & Tube Assembly Replacement
- Discharge refrigerant from system.
- Disconnect refrigerant line at condenser outlet connection.
- Disconnect refrigerant line at the tube-O end using a wrench on each side of tube-O fittings and remove line from vehicle.
- Route new refrigerant line, and integral fixed orifice tube, with the protective caps installed.
- Remove protective caps and connect new refrigerant line into the system using new O-rings lubricated with refrigerant oil.
- Leak test, evacuate and charge refrigerant system.
- Disconnect refrigerant line at the tube-O end using a wrench on each side of tube-O fittings and remove line from vehicle.
- Route new refrigerant line, and integral fixed orifice tube, with the protective caps installed.
- Remove protective caps and connect new refrigerant line into the system using new O-rings lubricated with refrigerant oil.
- Leak test, evacuate and charge refrigerant system.
- Remove refrigerant line from vehicle as described under ``Line & Tube Assembly Replacement.''
- Identify location of orifice tube by three indented notches or a circular depression on metal portion of tube.
- Note angular position of ends of liquid line for assembly reference.
- Cut a 2.5 inch section from tube at orifice tube location. Do not cut any closer than one inch from start of bend in tube.
- Flush out two lengths of refrigerant line to remove any contaminants.
- Lubricate O-rings with clean refrigerant oil, then assemble orifice tube kit to line. Ensure flow direction arrow points toward evaporator end of line and taper of compression rings is toward compression nut. When properly assembled, the inlet tube is positioned against the orifice tube tabs.
- With tube hex nut secured in a vise, torque compression nuts to 65-70 ft. lbs.
- Install liquid line using new lubricated O-rings.
- Leak test, evacuate and charge refrigerant system.
