Risk of injury caused by spring tensioningWhen carrying out maintenance work on the switched-off feeder there is a danger of injury through unintentional switching-on. ▲ Switch off the feeding system before carrying out maintenance work on the feeder and secure it against unintentional restarting (see chapter 9.1). ▲ Never remove spring of the tensioning mechanism. The spring has a strong pretension. (see Fig. 10.1)