Servicing Refrigerant Oil Level

STANDARD PROCEDURE - SERVICING REFRIGERANT OIL LEVEL

CAUTION: The refrigerant oil used in a R-134a A/C system is unique. Use only oils which were designed to work with R-134a refrigerant. The oil designated for this vehicle is ND8 PAG (polyalkalene glycol).

Recovery/recycling equipment will measure the lubricant being removed. This is the amount of lubricant to be added back to the system. If a new compressor is being installed, drain lubricant from the old compressor, measure the amount drained and discard old lubricant. Drain the lubricant from the new compressor into a clean container. Return the amount of lubricant measured from the old compressor, plus the amount reclaimed from the system back into the new compressor.

1. Discharge refrigerant system using recovery/recycling equipment if charge is present.
2. Disconnect refrigerant lines from A/C compressor. Cap the open lines to prevent moisture from entering system.
3. Remove compressor from vehicle.
4. From suction port on top of compressor, drain lubricant from compressor.
5. Add system capacity minus the capacity of components that have not been replaced. Add lubricant through the suction port on compressor. This is not to exceed 180 ml (6.10 oz.) in total.
6. Install compressor and connect refrigerant lines. Then evacuate and charge refrigerant system.