Nissan Maxima Service and Repair Manual: Preparation
Special Service Tool
The actual shapes of the tools may differ from those illustrated here.
HFC-134a (R-134a) Service Tool and Equipment
Do not mix HFC-134a (R-134a) refrigerant and/or its specified oil with CFC-12 (R-12) refrigerant and/or its oil.
Separate and non-interchangeable service equipment must be used for handling each type of refrigerant/oil.
Refrigerant container fittings, service hose fittings and service equipment fittings (equipment which handles refrigerant and/or oil) are different between CFC-12 (R-12) and HFC-134a (R-134a). This is to avoid mixed use of the refrigerants/oil.
Adapters that convert one size fitting to another must not be used refrigerant/oil contamination will occur and compressor failure will result.
Commercial Service Tool