Refrigerant Oil Adding
REFRIGERANT OIL ADDINGSpecial Tool(s):
Special Tool(s)
Refrigerant Oil Adding
CAUTION: During normal A/C operation, oil is circulated through the system with the refrigerant, and a small amount is retained in each component. If certain components of the system are removed, some of the refrigerant oil will go with the component. To maintain the original total oil charge, it is necessary to compensate for the oil lost by adding oil to the system with the new part.
1. Refer to the chart for refrigerant oil adding amounts and methods of installation.
Refrigerant Oil Adding for New A/C Compressor Installation
NOTE: The service A/C compressor for this vehicle is shipped from the factory with PAG oil installed. The refrigerant oil adding procedure specified for this vehicle must be followed to avoid installing excessive PAG oil in the refrigerant system.
1. Rotate the new A/C compressor shaft 8 to 10 revolutions while collecting the PAG oil in a clean measuring cup.
2. Rotate the oil A/C compressor shaft 8 to 10 revolutions while collecting the PAG oil in a separate clean measuring cup.
3. Remove enough PAG oil from the new compressor measuring cup to make the remaining amount of oil in the cup match the amount remove from the oil A/C compressor.
4. Add the PAG oil from the new A/C compressor measuring cup to the suction side of the A/C compressor.
Oil Injection Using a Dye/Lubricant Injector
NOTE: If fluorescent leak detection dye is also to be added during A/C charging, the dye may be added to the dye/lubricant injector along with the refrigerant oil.
1. Evacuate the refrigerant system.
2. Assemble the dye/lubricant injector using the correct adapters to match the amount of refrigerant compressor oil to be injected.
3. Verify that all the valves on the dye/lubricant injector are closed.
4. Fill the dye/lubricant injector with the correct amount of new refrigerant compressor oil.
5. Install the dye/lubricant injector between the low-side service gauge port valve and the refrigerant service station or manifold gauge set.
6. Open all valves and charge the refrigerant system.