Charging and Testing Equipment

WARNING:
- The air conditioning system is charged with a high pressure, potentially toxic refrigerant. Repairs or servicing MUST only be carried out by an operator familiar with both the vehicle system and the charging and testing equipment.
- All operations must be carried out in a well-ventilated area away from open flame and heat sources.
- Always wear safety goggles when opening refrigerant connections.

Standard equipment for the servicing of automotive air conditioning systems is used for all testing, trouble shooting, evacuating and charging operations.

Various designs of charging and testing equipment are available depending upon the manufacturer chosen by the user. As slight variations do occur it is recommended that the operator adheres to the appropriate manufacturers instructions for the equipment in use.

CONNECTING EQUIPMENT
1. Check that both service valves are fully open (turned counter-clockwise).
2. Wearing safety goggles remove the dust caps from the gauge connections on the service ports.
3. Coat the threads and flares with compressor oil.
4. Connect the charging and testing equipment referring to the equipment manufacturers instructions.

DISCONNECTING EQUIPMENT
1. If the engine has been operated it must be stopped prior to disconnecting the equipment.
2. Close both the service ports by turning fully counter-clockwise.
3. Disconnect the charging lines from the service ports.
4. Refit the dust caps to the compressor valve stems and service ports, and to the charging lines.