Inspection and Repair Refrigerating System
INSPECTION AND REPAIRING REFRIGERATING SYSTEM
CHARGE OF REFRIGERANT
The following procedure can be used for quickly checking whether the A/C system has a proper charge of refrigerant or not.
Run engine at fast idle, and operate A/C at its max. cooling capicity for a few minutes. Then look at the sight glass on reciever/dryer to check charge of refrigerant.
Use the following table when checking charged state of refrigerant and correct it as necessary.