PRECAUTIONS — Precautions for Refrigerant Connection

When replacing or cleaning refrigerant cycle components, observe the following. Do not leave compressor on its side or upside down for more than 10 minutes, as compressor oil will enter low pressure chamber. When connecting tubes, always use a torque wrench and a back-up wrench. After disconnecting tubes, plug all openings immediately to prevent entrance of dirt and moisture. When installing an air conditioner in the vehicle, the pipes must be connected as the final stage of the operation. The seal caps of the pipes and other components must not be removed until their removal is required for connection. Before installing any air conditioner component that has been stored in a cool location to a vehicle that has been exposed to the hot sun, leave the component as it is for some time in a hot location with its seal cap unremoved. This step is necessary to prevent condensation of moisture inside the cold component. Thoroughly remove moisture from the refrigeration system before charging the refrigerant. Always replace used O-rings. When connecting tube, apply compressor oil to portions shown in illustration. Be careful not to apply oil to threaded portion. O-ring must be closely attached to inflated portion of tube. After inserting tube into union until O-ring is no longer visible, tighten nut to specified torque. After connecting line, conduct leak test and make sure that there is no leakage from connections. When the gas leaking point is found, disconnect that line and replace the O-ring. Then tighten connections of seal seat to the specified torque.