|
|
Charge Level-Check or Fill. If while performing this EMPTY REFRIGERANT SYSTEM LEAK TEST (1) Evacuate the refrigerant system (minimum evacuation time of 15 min.) to the lowest degree of (2) Prepare a .284 Kg. (10 oz.) refrigerant charge to be injected into the system. (3) Connect and dispense .284 Kg. (10 oz.) of refrigerant into the evacuated refrigerant system. (4) Proceed to Step 3 of Low Refrigerant Level Leak Test. LOW REFRIGERANT LEVEL LEAK TEST (1) Determine if there is any (R-134a) refrigerant in the system. Use the scan tool (DRB) partial charge (2) Position the vehicle in a wind free work area. This will aid in detecting small leaks. (3) Bring the refrigerant system up to operating temperature and pressure. This is done by allowing • Transaxle in Park • Engine Idling • A/C Controls Set in 100 percent outside air • Blower switch in the high A/C position • A/C in the ON position • Open all windows CAUTION: A leak detector designed for R-12 refrig- Fig. 12 Charge Determination Graph 300M HEATING AND AIR CONDITIONING 24 - 15 SERVICE PROCEDURES (Continued) |