<!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 6.00.2800.1400" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV>Terry, </DIV> <DIV>Bass height of strings: 8"</DIV> <DIV>end of section: 7 15/16</DIV> <DIV> </DIV> <DIV>Next: 7 11/16 to 7 11/16 all the way to the top of the treble. = </DIV> <DIV>I hope this helps. Also are you aware there are two setting for the = action spread? Based on the year it was made. Hope this helps, Rich = Snelson</DIV> <DIV>Richard Snelson<BR><A href="mailto:rsnelson0984@mchsi.com">rsnelson0984@mchsi.com</A></DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B> <A title=mfarrel2@tampabay.rr.com href="mailto:mfarrel2@tampabay.rr.com">Farrell</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, April 11, 2004 = 1:06 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Rough Regulation</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>To those not out on Easter Egg hunts:</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>I replaced action brackets on a Young = Chang small grand action. As expected, the regulation was way, way out of whack. I = have no string height measurements. I wish to rough-regulate that action so = that I don't have to do three days of regulating when I bring it back to the = piano (which is 50 miles away).</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>I'm guessing at string height by = setting my let-off rack at the height where the hammer meets it and the shank is horizontal. I know that might not be exact, but it should be pretty = close. Then I am roughing in key height/level (65 mm - spec is 64.5 mm), dip = (10.2 mm), blow distance (47 mm) from manufacturers specs. The 10.2 mm dip = gives me 1/16" let-off and 0.025" after-touch (don't you like how I mix metric, = english fractions and decimals together?). So that seems real nice. I also = suggests I've got the action spread correct (113.5 mm). But what = seems odd is the hammers at rest sit low. I've got the hammer rest rail plastered = against the wippen flanges and the shanks just barely clear the rest rail = felt. Also, to get the 10.2 mm dip, I have to remove all the punchings under = the front rail felt. My guess is the ample punchings that were there were = original - and presumably the action worked. Just seems like something is not = quite right, and I'm not comfortable with such a divergence from what seemed = to work originally. Am I perhaps giving the original manufacture of this piano = (about 1990) too much credit - or am I missing something?</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Thanks for any thoughts.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Terry Farrell</FONT></DIV></BLOCKQUOTE></BODY></HTML>