<HTML> <HEAD> <TITLE>Re: [CAUT] young chang action brackets</TITLE> </HEAD> <BODY> Ditto what everyone else has said.  Also, in the end you will see the hammer tails clicking or hanging up on the wippen flange screws.  I was called in on one at that point.  The brackets were cracking from the stress of trying to expand while being constrained by the keyframe.  Had a devil of a time getting the stack off the keyframe.   The basic diagnostic criterion is spread.  Get the spread spec from Young Chang; I had it years ago but no longer.  If the action is out of regulation, especially letoff, and the spread is too big, you’ve got a bracket problem. Regards, Ken Z. On 5/21/07 8:21 AM, "Richard Adkins" <RADKINS@coe.edu> wrote: <BLOCKQUOTE>Pray tell, what are the symptoms of the growing aciton bracket you describe? How do I know if I have an "aciton bracket growing" problem? We have a Weber made by Young Chang in 1989. Most of the problems with it have been tight hammer flange pins and loose damper lever weights.   thanks, Richard </BLOCKQUOTE> -- Ken Zahringer, RPT University of Missouri School of Music </BODY> </HTML>