The present invention is a system that receives data in different formats from different devicesapplications in the format native to the devicesapplications and fuses the data into a common shared audiovideo collaborative environment including a composite display showing the data from the different sources in different areas of the display and composite audio. Based on the determined position of the sensor, the tracking device sends signals to the operator and an actuator on the machine based on a comparison with a danger zone, warning zone, or operator zone. The flexible connection for pressurized fluid 7 includes a hose 11. The aim of the invention is to provide a ring filter element of the aforementioned type that can be packed in a space-saving manner. A fastener directly connects the brake shoe to the balance channel.