> The rear concert caster on one of our Ds “knocks” and I can’t seem to > find the “fix”. If we orient it 90 degrees to the player it doesn’t > knock, but if the stage crew forgets and it is in line with the player > it will knock with vigorous playing. (Fairly loudly, like someone > tapping their foot.) The leg seems to be tight. It is the actual wheel. > It is the big expensive brass kind, but unfortunately not Jurgen’s. Any > simple fix? > > > > The front castors lock (and have no problem) but the rear doesn’t. I > can’t see how/where/why it is knocking, but it surely does. > > > > Thanks. > > Jim Busby BYU Try swapping it with one of the front ones. It may work, or if not, may give you a clue why it's doing it in the first place once it's out. Ron N
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