Refrigerant Oil Adding

For information on Ford Color Coded Illustrations, refer to OEM COLOR CODING

Special Tool(s) / General Equipment 

Filling 

1. Adjust the oil injector piston and fill the oil injector with the correct amount of clean, new Motorcraft® PAG Refrigerant Compressor Oil (YN-12-D). REFER to Refrigerant Oil Adding (when new components are installed) chart below for refrigerant oil adding amounts and methods of installation.
   • 265?37887 Ritchie R134A A/C Refrigerant Hybrid Management System

     Refrigerant Oil Adding (when new components are installed) 

     Component	Motorcraft® PAG Refrigerant Compressor Oil (YN-12-D) Amount, floz (ml)	Method of Adding
     After installing the A/C Compressor.	Service compressor contains full system charge of oil. Oil matching required plus amount collected during recovery.	Refer to oil adding steps above.
     After installing the receiver drier.	2 fl oz (60 ml) plus the amount collected during refrigerant recovery.	Inject to low-side service port during system charging.
     After installing the receiver drier element.	1 fl oz (30 ml) plus the amount collected during refrigerant recovery.	Inject to low-side service port during system charging.
     After installing the condenser core.	1.5 fl oz (45 ml) plus the amount collected during refrigerant recovery.	Add directly to inlet port or inject to low-side service port during system charging.
     After installing the condenser core, and the receiver drier element.	2 fl oz (60 ml) plus the amount collected during refrigerant recovery.	Add directly to inlet port or inject to low-side service port during system charging.
     After installing the evaporator core.	1.5 fl oz (45 ml) plus the amount collected during refrigerant recovery.	Add directly to inlet port or inject to low-side service port during system charging.
     After installing/reassembling the thermostatic expansion valve.	Amount collected during refrigerant recovery.	Inject to low-side service port during system charging.
     After installing a refrigerant Hose/Line.	2 fl oz (60 ml) plus the amount collected during refrigerant recovery (1)	Inject to low-side service port during system charging.
     After an O-ring Leak Repair.	1 fl oz (30 ml) plus the amount collected during refrigerant recovery (2)	Inject to low-side service port during system charging.
     After a service port leak repair.	Amount collected during refrigerant recovery.	Inject to low-side service port during system charging.
     (1) If an excessive amount of Motorcraft® PAG Refrigerant Compressor Oil (YN-12-D) is lost due to a hose rupture/separation or other damage, the total system Motorcraft® PAG Refrigerant Compressor Oil (YN-12-D) capacity must be added. Also, it is necessary to replace the receiver drier. (2) The amount specified may be used for one or multiple O-ring leak repairs. Do not multiply the Motorcraft® PAG Refrigerant Compressor Oil (YN-12-D) amount by the number of O-ring leaks being repaired.

     Use the General Equipment: Air Conditioning Service Unit

Inspection 

Oil Injection Using a Refrigerant Oil Injector Set 

1. NOTE: Fluorescent refrigerant system dye is added to the refrigerant system at the factory to assist in refrigerant system leak diagnosis using a Rotunda-approved UV black light. It is not necessary to add additional dye to the refrigerant system before diagnosing leaks, even if a significant amount of refrigerant has been removed from the system. Replacement suction accumulators, receiver driers and receiver drier elements are shipped with a fluorescent dye wafer included in the desiccant bag which dissolves after approximately 30 minutes of continuous A/C operation. It is not necessary to add dye after flushing the refrigerant system because a new suction accumulator, receiver drier or receiver drier element is installed as part of the flushing procedure.