Don Mininger

Yes, it's pretty obvious that "Some" method be found to more securely lock this "screw" down, in order to keep the idler from working loose and causing belt damage.  I just used parts I had on hand in my workshop, and I will keep a close eye on this idler and try another method if I see any further loosening.  

I was a bit disappointed when I saw how this area was manufactured....I'm surprised that  Husqvarna let something like this escape their "quality control".