Precautions For Refrigerant Service

WARNING:
Make sure all refrigerant is discharged into the recycling equipment and the pressure in the system is less than atmospheric pressure. Then gradually loosen the discharge side hose fitting and remove it.

CAUTION:
When replacing or cleaning refrigerant cycle components, observe the following.
^ When the compressor is removed, store it in the same position as it is when mounted on the car. Failure to do so will cause lubricant to enter the low pressure chamber.
^ When connecting tubes, always use a torque wrench and a back-up wrench.
^ After disconnecting tubes, immediately plug all openings to prevent entry of dirt and moisture.
^ When installing an air conditioner in the vehicle, connect the pipes as the final stage of the operation. Do not remove the seal caps of pipes and other components until just before required for connection.
^ Allow components stored in cool areas to warm to working area temperature before removing seal caps. This prevents condensation from forming inside A/C components.
^ Thoroughly remove moisture from the refrigeration system before charging the refrigerant.
^ Always replace used 0-rings.
^ When connecting tube, apply lubricant to portions shown in illustration. Be careful not to apply lubricant to threaded portion.
Lubricant name: Nissan A/C System Oil Type S (For swash plate type compressor and V-6 compressor) Nissan A/C System Oil Type R (For vane rotary type compressor)
Part number: KLH00-PAGS1 (For swash plate type compressor and V-6 compressor) KLH00-PAGR1 (For vane rotary type compressor)
^ 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.