Leak Test

EQUIPMENT
Only use service equipment that is U.L.-listed and is certified to meet the requirements of SAE J221O to remove HFC-134a (R-134a) from the air conditioner system.

CAUTIONS
Exposure to air conditioner refrigerant and lubricant vapor or mist can irritate eyes, nose and throat. Avoid breathing the air conditioner refrigerant and lubricant vapor or mist.

If accidental system discharge occurs, ventilate work area before resuming service.

R-134a service equipment or vehicle air conditioner systems should not be pressure tested or leak tested with compressed air.

WARNING: Some mixtures of air and R-134a have been shown to be combustible at elevated pressures and can result in fire or explosion causing injury or property damage. Never use compressed air to pressure test R134a service equipment or vehicle air conditioner systems.
Additional health and safety information may be obtained from the refrigerant and lubricant manufacturers.





PROCEDURE
1. Connect a R-134a refrigerant Recovery/Recycling/Charging System to the car, as shown, following the equipment manufacturer's instructions.

NOTE: Whenever the system is recovered, be sure to install the same amount of new refrigerant oil back into the A/C system before charging.

2. Open high pressure valve to charge the system to specified capacity, then close the supply valve, and remove the charging system couplers.

Refrigerant capacity: 650 +0/-50 g (23 +0/-2 oz)

3. Check the system for leaks using a R-134a refrigerant leak detector with an accuracy of 14 g (0.5 oz) per year or better.
4. If you find leaks that require the system to be opened (to repair or replace hoses, fittings, etc.), recover the system according to the procedure described under Refrigerant Recovery.
5. After checking and repairing leaks, the system must be evacuated. See A/C System Evacuation