Young Chang Aftertouch

[Z! Reinhardt]

Hi Tom, Others  -- 

You're right about the blistered, crumbling brackets swelling while the
metal crystallizes.  There was a thread about this last summer sometime
started by PianoNurse when she worked on another make of piano that had the
same problem with crumbling brackets.

However, I used to work on a lot of Young Chang products ... and I still
see the occassional piano that escaped a dealer unprepped when I *inherit* 
customers from other technicians who preferred not to bother much with
regulation.  I remember some of the regulating jobs in the rough fresh from
the factory when I worked for a dealer, many of which featured the
inordinately high drop.

My earlier post tonight on Aftertouch in general is based on the assumption
that everything checked out OK with the physical condition of the action
components.  Perhaps I should have specifically mentioned the action
brackets ...........

This brings to mind another Young Chang phenomenon I've encountered  --
problems with the threaded "pins" that hold the regulating dowels.  On some
pianos, these pins would be wider at the tip than at the base, which meant
that the dowels were caught on only 2-3 threads rather than along the whole
length.  This in turn meant that the dowels were prone to riding up on the
pins to the point where hammers readily blocked.

ZR!  RPT
Ann Arbor  MI
diskladame@provide.net
----------
> From: Tom Myler <TomMyler@worldnet.att.net>
> To: pianotech@ptg.org
> Subject: RE: Young Chang Aftertouch
> Date: Wednesday, May 13, 1998 7:14 PM
> 
> 
> Mike,
> 
> you might call Phillip Glenn at Young Chang about this.   Several years
ago
> there was a batch of YC's that have defective action brackets; the metal
> deteriorates (crystallizes?) and *expands*,  skewing the action spread,
and
> making proper regulation impossible.   I am NOT making this up.
> 
> The symptoms you describe fit this diagnosis.   I've worked on several of
> these, and on all but one of them you could see big "blisters" on the
> brackets.
> 
> IF this is your problem you can easily replace the brackets and
re-regulate
> in less than a day.
> 
> 
> 
> 
> Tom Myler
> 
> "Well done" is better than "Well said"
> 
> 
>