Paul, I would look at the hammer shank spacing over the wippens. It could be that the shanks / hammers have been spaced towards the bass, causing the action to have to move farther than normal to make the una-corda work. Trimming stop block (or removing shims), spacing the hammers towards the treble, then resetting the una-corda adjustments might do the trick. As Owen mentioned, once you are confident that the action is spaced properly, then look at the damper lever spacing. I have also on a few occasions trimmed key end felt to solve this problem. Don Mannino On Sat, 2008-05-24 at 16:36 -0500, paul bruesch wrote: > A client has a Young Chang TG-150, mfg in 2000. When I press the shift > pedal, it doesn't go down very far, and the action does not shift far > enough to play only two strings. I adjusted it so that it would shift > farther, but then the dampers of the wound bichords to the right of > the break (there are about eight such notes) would lift in pairs... > for example, playing D3 with the shift pedal down results in dampers > for D3 and D#3 being raised. This only happens on those eight or so > notes, not in the plain wire treble, nor in the wound bichords left of > the break. > > Any ideas? > Thanks, > Paul Bruesch > Stillwater, MN -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20080524/a0597151/attachment.html
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