He worked for a parcel delivery service in Hall in Tirol. He had loaded the hydraulic press with empty boxes and started it up. At that point, the long-time employee walked to the edge of the charging (filling) hole and used his foot to press the boxes further into the hydraulic trash compactor.
His foot was was seized by the press, and he was drawn into the chamber and crushed. He was not discovered until his colleagues needed to use the press again the next day.