A system includes a carriage track positioned adjacent to a rotary milking platform, a robot carriage mounted to the carriage track, and a controller. The wireless telecommunication device has a dormant state without an open dedicated traffic channel for communications therefrom and an active state in which the wireless devices opens a dedicated traffic channel for an outgoing communication from the wireless telecommunication device, to include a direct communication stream. A combustion chamber temperature is measured by a first temperature sensor arranged on the combustion chamber and supplied to a control unit, which calculates the cooling time andor the speed for the fan as a factor of the measured combustion chamber temperature and supplies these values to the motor. The arm is moveable between a storage position and a projection position. The invention likewise relates to apparatus, in particular for carrying out the method.