Q: How to replace the A/C Orifice Tube in an A/C system on Cadillac DeVille?
A: The first step for replacing an A/C Orifice Tube consists of removing refrigerant from the system. Recover the refrigerant from the system before loosening the 0-ring joint with the j 39500-b. Then remove the A/C Orifice Tube from the a/c tube by separating the tubing halves. Use 525 refrigerant to lubricate a new 0-ring before placing the A/C Orifice Tube inside the a/c line before it binds into the 0-ring joint. Use the j 39500-b to tighten the dual 0-ring joint until it reaches 24 n.m (18 lb ft) torque level. Then reposition the line into the plastic hold-down clamp. The objective entails refrigerant recharge of the system followed by leak testing of repaired or reinstalled component fittings through the combination of j 39400 electronic halogen leak detector and j 38042 dual 0-ring tube separator.
Q: How to replace the A/C Orifice Tube in a refrigerant system on Cadillac Seville?
A: The first step to replace the A/C Orifice Tube requires recovering the refrigerant from the system. A Dual O-Ring Tube Separator (J 38042) facilitates O-ring joint loosening and tubing half separation prior to removing the A/C Orifice Tube. Place 525 refrigerant on the new O-ring before installing the A/C Orifice Tube by connecting both ends of the O-ring joint. Use 24 N.m (18 lb ft) of torque to fasten the dual O-ring joint before putting the tube back into its normal position. The refrigeration system needs recharge followed by component leakage testing through the Electronic Halogen Leak Detector (J 39400) at the repaired or new parts' fittings.