Precautions when replacing air conditioning system parts (Hyundai Tucson JM)

1. It is prohibited to loosen the connections of parts before draining the refrigerant from the system.

2. To prevent moisture from entering, immediately close open openings of parts with caps or plugs.

3. Remove protective plugs only immediately before installing the part.

4. When connecting the fittings of the parts, be sure to install new sealing rings, having first applied refrigerant or oil to the fitting and seal.