Technician Safety Information

REFRIGERANT (R12) HANDLING WARNINGS
- Always wear eye protection.
- Do not let refrigerant get on your skin or in your eyes. If it does:
- Do not rub your eyes or skin.
- Splash large quantities of cool water in your eyes or on your skin.
- Rush to a physician or hospital for immediate treatment. Do not attempt to treat it yourself.
- Keep refrigerant containers (cylinders of R-12) stored below 40°C (100°F).
- Do not handle or discharge refrigerant in an enclosed area near an open flame; it may ignite and produce a poisonous gas.

ENVIRONMENTAL PRECAUTIONS
- The ozone is a fragile layer surrounding the earth which acts as a shield against the sun's ultra-violet radiation. Chlorine from chemicals called chlorofluorocarbons (CFCs) destroy the ozone in the stratosphere. Automotive air conditioning systems currently use chlorofluorocarbons as the refrigerant.
- Auto air conditioning service equipment has been developed to minimize the release CFCs to the atmosphere. All service procedures should be performed using this equipment according to the manufacturer's instructions.

SERVICE TIPS AND PRECAUTIONS
1. Always disconnect the negative cable from the battery whenever replacing air conditioner parts.
2. Keep moisture and dust out of the system. When disconnecting any lines, plug or cap the fittings immediately; don't remove the caps or plugs until just before the lines are reconnected.
3. Before connecting any hose or line, apply a few drops of refrigerant oil to the seat of the 0-ring or flare nut.
4. When tightening or loosening a fitting, use a second wrench to support the matching fitting.
5. When discharging the system, use a Refrigerant Recovery/Recycling System; don't release refrigerant into the atmosphere.
6. Add refrigerant oil after replacing the following parts:
- Condenser 30 cc (1 fl-oz)
- Evaporator 60 cc (2 fl-oz)
- Line or hose 10 cc (1/3 fl-oz)
- Receiver 10 cc (1/3 fl-oz)
- Compressor, calculate as follows:
- When a new compressor is installed, drain 30 cc (1 fl-oz) of refrigerant oil from the suction fitting on the compressor.
- If you are also replacing any of the above parts, pro-rate the amount you drain by the amount you should add for the other part(s).
7. Torque all components to specifications.