Insert the middle of your cable in the "Verankerung" and twist. The gear can be turned in only one direction. if you want to release the cable press the "Griff" down and the "Verankerung" will slide down, of the gerar. This will unlock the mechanism and release the cable. You just need one screw to screw the "Griff" on the "Verankerung". and you need one spring 14mm wide and 10mm high.