David, Jon, Wim: It seems that you all are suspecting action geometry as the problem. Moving the stack, relocating knuckles, and moving the wippen rail - all things I have never encountered before. I am wondering if anyone has had this kind of problem with Schafer grands before, or is this an isolated case? Patrick C. Poulson Registered Piano Technician 530-265-1983 ----- Original Message ----- From: David Love To: pianotech at ptg.org Sent: Friday, January 29, 2010 6:07 PM Subject: Re: [pianotech] Weighing Off A Schafer Grand Symptoms seem to point to poor leverage. Sounds like there's already too much lead. Take upweight and downweight samples on 10 - 15 notes through the scale and post it. Also how many leads in the bass, mid tenor and treble and approximately where they are located in reference to the balance rail (closer to the BR or closer to the front) David Love www.davidlovepianos.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100130/95cac5dd/attachment.htm>
This PTG archive page provided courtesy of Moy Piano Service, LLC