<!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 5.50.4913.1100" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Arial size=2> The bedding of the =
action isn't
the same in and out of the piano. What I would do is check the keydip =
with a dip
block in the piano with the action bedded, then, you can pull the action =
out in
your lap and find the correct balance point that will give you the same =
key dip,
and regulate from there.</FONT></DIV>
<DIV><FONT face=Arial size=2> If you're working on =
a bench,
set up sample notes with the keyframe bedded in the piano, put it on the =
bench,
bed it to the bench, and regulate; knowing you'll have to re-bed it when =
you put
it back in.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<BLOCKQUOTE
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=fordpiano@lycos.com =
href="mailto:fordpiano@lycos.com">Phillip L
Ford</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> Thursday, March 14, 2002 =
6:45
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Bass hammer =
checking</DIV>
<DIV><BR></DIV>Yesterday I worked on an older Baldwin with a Schwander =
action
that<BR>had a characteristic that I've encountered on other grand
pianos,<BR>some having it more than others. The hammers check =
perfectly
on the<BR>bench or when the action is pulled out in your lap, but =
won't check
when<BR>the action is in the piano. This behavior is usually =
only
noticeable in the<BR>low end of the scale and becomes most pronounced =
at the
bottom. On some<BR>pianos it seems that you can't get the =
hammers at the
bottom end to truly<BR>check no matter what you do; make the checking
shallower, make it deeper,<BR>groove the tail, rough up the check =
leather,
change the back check angle,<BR>reduce rep spring strength to almost =
nothing,
etc. When I say 'truly check'<BR>I mean behave as in the rest of =
the
piano. The hammer is held<BR>some distance below the string when =
the key
is down and rises<BR>when the key is released. Apparently some =
sort of
'checking'<BR>is going on because even on a hard blow the hammers =
don't bounce
back to<BR>the strings. But the tail isn't really being held by =
the
backcheck when the<BR>key is down. What's the reason for
this?<BR><BR>Phil F<BR>---<BR>Phillip Ford<BR>Piano Service &
Restoration<BR>1777 Yosemite Ave - 215<BR>San Francisco, CA
94124<BR><BR><BR><BR>2,000,000,000 Web Pages--you only need 1. Save =
time with
My Lycos.<BR><A
href="http://my.lycos.com">http://my.lycos.com</A></BLOCKQUOTE></BODY><=
/HTML>