[CAUT] young chang action brackets

[Ken Zahringer]

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, you¹ve got a
bracket problem.

Regards,
Ken Z.


On 5/21/07 8:21 AM, "Richard Adkins" <RADKINS at coe.edu> wrote:

> 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
> 


-- 
Ken Zahringer, RPT
University of Missouri
School of Music

-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/caut.php/attachments/20070522/0ad5a041/attachment.html