Refrigerant Charge Check

QUICKLY CHECKING OF REFRIGERANT CHARGE (IF EQUIPPED WITH SIGHT GLASS)
The following procedure can be used for quickly checking whether the A/C system has a proper charge of refrigerant or not.
1. Run engine at fast idle.
2. Operate A/C at its max. cooling capacity for a few minutes.







3. Look at the sight glass (1) and compare what is observed with the symptoms listed in the table.