<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; = charset=iso-8859-1"> <META content="MSHTML 5.00.2314.1000" name=GENERATOR></HEAD> <BODY bgColor=#ffffff> <DIV><FONT color=#0000ff face=Arial><SPAN = class=500351120-29072000>Thank you all for the fast responses to my question. I'll try a few of the suggestions = and post the results here in a few weeks. The worst screws are the rep. = spring adjustment screws. (This piano has the Aeolian grand type whippens with = the rep spring that hooks into a cord at the back end.) The screw goes right = through the repetition lever and are so tight now that turning them tends to = torque the whole lever and the whippen at the flange centers & I sure don't = want to do that.  A soldering iron is probably my best bet here. I'll let you know.</SPAN></FONT></DIV> <DIV><FONT color=#0000ff face=Arial><SPAN class=500351120-29072000>Arnie</SPAN></FONT></DIV> <BLOCKQUOTE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: = 0px; PADDING-LEFT: 5px"> <DIV class=OutlookMessageHeader><FONT face="Times New Roman" size=2>-----Original Message-----<BR><B>From:</B> arnie [mailto:arniex@earthlink.net] <BR><B>Sent:</B> Friday, July 28, 2000 = 9:02 PM<BR><B>To:</B> 'pianotech@ptg.org'<BR><B>Subject:</B> Frozen or = Binding regulating screws<BR><BR></DIV></FONT> <DIV> </DIV> <DIV><FONT face=Arial><SPAN class=310023900-29072000>Hi, List. </SPAN></FONT></DIV> <DIV><FONT face=Arial><SPAN class=310023900-29072000></SPAN></FONT> </DIV> <DIV><FONT face=Arial><SPAN class=310023900-29072000>I have just = finished inspecting the action of an old Hallet & Davis baby grand. (The = serial number seems to have been long ago obliterated but I'm guessing it's = about 60-70 years old.)  The piano was just "rebuilt" but the = "rebuilder" didn't bother to regulate the action. This action isn't a little out, = it's grossly out! Perhaps the reason it wasn't regulated is that most of = the regulating screws are binding so badly I think they would break, or = worse - strip the holes if they were turned any large amount. = </SPAN></FONT></DIV> <DIV><FONT face=Arial><SPAN class=310023900-29072000></SPAN></FONT> </DIV> <DIV><FONT face=Arial><SPAN class=310023900-29072000>I will = shortly be attempting to regulate this action. </SPAN></FONT><FONT = face=Arial><SPAN class=310023900-29072000>I'm looking for any experiences out there = with techniques to free up  binding regulating screws. It has been = suggested that I try pin-point applications of Proteck's Prolube liquid, which I = will. But I would like to have more than one card up my sleeve before I = start this job. Can anyone suggest other approaches?  I thought of  = Liquid Wrench, but would it harm the action?</SPAN></FONT></DIV> <DIV><FONT face=Arial><SPAN class=310023900-29072000>Thanks, </SPAN></FONT></DIV> <DIV><FONT face=Arial><SPAN class=310023900-29072000></SPAN></FONT> </DIV> <DIV><FONT face=Arial><SPAN class=310023900-29072000> <DIV><FONT size=3>Arnie</FONT></DIV> <DIV><STRONG>Arnold D. Moss</STRONG></DIV> <DIV><STRONG>Associate Member, PTG</STRONG></DIV> <DIV> </DIV> <DIV> </DIV> <DIV><A = href="mailto:arniex@earthlink.net">arniex@earthlink.net</A></DIV></SPAN= ></FONT></DIV></BLOCKQUOTE></BODY></HTML>