Sticking Damper in Young Chang GS-150

[pmc033 at earthlink.net]

If you still haven't solved the damper problem, I learned that Y.C. damper wires often lean on one side of the damper bushing.  The lower bend needs to be regulated so that the wire doesn't rub so hard on the bushing.  This most often causes a problem in the treble section where there are no weights to pull the underlever down.  Usually, the wire is rubbing on the left side of the hole.  Adjust the wire by bending near the damper block, preferably at the lower bend.  I learned this from Phil Glenn.  YMMV.
    Paul Mccloud
    San Diego


----- Original Message ----- 
From: David Ilvedson 
To: pianotech at ptg.org
Sent: 05/16/2006 6:12:59 PM 
Subject: RE: Sticking Damper in Young Chang GS-150



Probably the sostenuto blade catching the damper tab.  Take a screwdriver and give a little push at the damper top flange.  This will move the tab slightly away from the sost blade.

David Ilvedson, RPT
Pacifica, California






Original message
From: "Marc Lanthier" 
To: pianotech at ptg.org
Received: 5/16/2006 1:18:28 PM
Subject: Sticking Damper in Young Chang GS-150


Hi,

The damper in the G5 region of a Young Chang model GS-150 small grand piano gets stuck open if you hit the key pretty hard (it must be pushed back down by hand). A medium hit on the key seems to jam the hammer for 1 second but it returns to the down position. Even if I hit the key lightly I observed some binging of the damper before it returned to the down position.

What could be the problem, does the action have to be taken out of the piano for repair?

Thanks,

Marc
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20060516/dd6d08b5/attachment.html