A/C Service Station, Connecting For Measuring And Testing

-- Switch off the ignition.

-- Connect the A/C Service Station to the power supply.

-- Connect the quick-release coupling adapter to the charging hoses of the A/C Service Station (hand wheels not screwed in or manual shut-off valve not open).

-- Switch on the A/C Service Station and evacuate the charging hoses (only necessary if there is air in the charging hoses).

-- Switch off the A/C Service Station.

-- Remove the cap from the service connections (with valve).

-- Connect the A/C Service Station to the vehicle refrigerant circuit using the service connections with the quick-release coupling adapters.

-- Screw in the handwheel of the quick-release coupling adapters only until the valves are definitely open at the refrigerant circuit connection (observe pressure gauge, do not strain valves).

-- Perform the planned tests and measurements.