<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=US-ASCII"> <meta name=Generator content="Microsoft Word 10 (filtered)"> <style>  </style> </head> <body lang=EN-US link=blue vlink=purple id="role_body" bottomMargin=7 leftmargin=7 topmargin=7 rightMargin=7> <div class=Section1> <p class=MsoNormal><font size=2 color=navy face=Arial id="role_document"><span style='font-size:10.0pt;font-family:Arial;color:navy'>Does everyone complain?  If you were to present me with the data below without the comment about feeling heavy I would think this looks pretty good.  If the balance weight is actually 38 grams throughout, as suggested by your average, then you can start looking for other problems.  What I would do is weigh off the action complete (upweight and downweight on each note) and see if some sections of the piano are perhaps heavier than others.  It takes about an hour.  Put the data on a spread sheet and calculate the balance weight ((UW+DW)/2).  If it’s heavier in a critical section of the piano that might account for your reports.   Post the data or send it to me privately.  </span></font></p> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'> </span></font></p> <div> <p><font size=2 color=navy face="Times New Roman"><span style='font-size:10.0pt; color:navy'>David Love</span></font><font size=2 color=navy><span style='font-size:10.0pt;color:navy'><br> davidlovepianos@comcast.net<br> www.davidlovepianos.com</span></font><font color=navy><span style='color:navy'> </span></font></p> </div> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br> <b><span style='font-weight:bold'>From:</span></b> pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] <b><span style='font-weight:bold'>On Behalf Of </span></b></span></font><font size=2 face=Tahoma><span style='font-size: 10.0pt;font-family:Tahoma'>Byeway222@aol.com</span></font><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'><br> <b><span style='font-weight:bold'>Sent:</span></b> Thursday, July 13, 2006 8:15 AM<br> <b><span style='font-weight:bold'>To:</span></b> pianotech@ptg.org<br> <b><span style='font-weight:bold'>Subject:</span></b> Grand touch</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>Hello List,</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>It has been fascinating reading the posts on inertia, initially sparked off by my original posting on the Petrof action I am dealing with.  Unfortunately I still don't have any further clarification as to whether inertia is the problem.  I have been back to the piano and checked certain areas which I had not previously been able to do.  If I could reiterate, the situation is:-</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>A Renner action in a 12 year old Petrof concert grand which feels heavy and tiring to pianists.</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>The D/W  average is 48g and U/W average 28g. Action ratio around 5.5</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>The regulation is not perfect but is good.</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>The damper pick up point is right.</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>The keys are not binding at the balance point or at the capstan.</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>The key weighting goes from 3 half inch weights in the bass through a (curious) tenor octave of 4, then to 2 and 1.  Obviously, the positioning of weights is crucial but without photos I can only describe the positioning as not looking unusual in any way.</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>I noticed that the whippens are the Renner design to take a helper spring.  I don't see evidence though, that a set of springs or looped flanges has been removed. They are usually just unhooked if a technician decides against them.</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>So, given that friction does not appear to be a problem in the general feel of the action, what would be your next steps in solving the problem.</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>ric</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'> </span></font></p> </div> </div> </body> </html>