How to take care of your horn's bell screw

If you don't take care of your Horn, the bell might get suck. This little trick helps on preventing it, by using a dry lubricant, but unfortunatelly doesn't help if it is already stuck! If that happens, I highly discourage you to force the bell or the result might be even worse than your deepest nightmare... Considere yourself advised and take your horn to a specialized technician AFAP. I've seen small students taking a horn to complete ruing just by forcing the bell, believe or not, it is very easy to twist your horn like if it was a sheet of paper...
English subtitles available by pressing the button below the video!