[CAUT] unmusical caster noise

[Jim Busby]

All,

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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/caut.php/attachments/20071204/bc827a77/attachment.html