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<DIV><SPAN class=575502223-11032005><FONT =
color=#000080>Ken,</FONT></SPAN></DIV>
<DIV><SPAN class=575502223-11032005><FONT
color=#000080></FONT></SPAN> </DIV>
<DIV><SPAN class=575502223-11032005><FONT color=#000080>The reason =
for having
the pivots at different positions is to improve half-pedalling. =
The Kawai
EX concert grand and all Shigeru Kawai pianos have this same =
arrangement, even
though the standard Kawai grands have tray pivots in line with the =
damper lever
center pins.</FONT></SPAN></DIV>
<DIV><SPAN class=575502223-11032005><FONT
color=#000080></FONT></SPAN> </DIV>
<DIV><SPAN class=575502223-11032005><FONT color=#000080>When this =
type
of system is set up correctly, the damper lever centers swing up =
and back a
little when the pedal is used. This causes the damper heads to =
rock up at
the back very slightly as the heads lift when the pedal is used, =
but when
the key is used the heads lift straight. This very slight uneven =
lift
gives the pianist a good deal more control over the tone when doing
half-pedalling. The pianist can float the dampers very lightly on =
the
strings.</FONT></SPAN></DIV>
<DIV><SPAN class=575502223-11032005><FONT
color=#000080></FONT></SPAN> </DIV>
<DIV><SPAN class=575502223-11032005><FONT color=#000080>I just sat =
in on a
seminar which showed a variety of pedal pivot locations in Steinway =
pianos over
the years - some of them were in correct alignment to get this effect
(especially the oldest tray design) while others were in the wrong
places.</FONT></SPAN></DIV>
<DIV><SPAN class=575502223-11032005><FONT
color=#000080></FONT></SPAN> </DIV>
<DIV><SPAN class=575502223-11032005><FONT color=#000080>Don Mannino
RPT</FONT></SPAN></DIV>
<DIV><SPAN class=575502223-11032005><FONT color=#000080>Kawai
America</FONT></SPAN></DIV>
<BLOCKQUOTE style="MARGIN-RIGHT: 0px">
<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr =
align=left><FONT
face=Tahoma size=2>-----Original Message-----<BR><B>From:</B>
caut-bounces@ptg.org [mailto:caut-bounces@ptg.org] <B>On Behalf Of =
</B>Ken
Zahringer<BR><B>Sent:</B> Friday, March 11, 2005 1:27 PM<BR><B>To:</B> =
College
and University Technicians<BR><B>Subject:</B> [CAUT] Steinway Damper
Action<BR><BR></FONT></DIV><FONT face=Garamond><SPAN
style="FONT-SIZE: 14px">OK guys, time to get serious. (Just a =
little,
and for just a little while.)<BR><BR>I’m going to replace the =
damper action in
our old Steinway D in a week or so. Putting in a new Renner =
system.
This brings up a question I have had for a long time and have =
never got
a good answer. Why is the tray pivot pin not in line with the =
underlever
flange pins? When I try to visualize the motion of the =
underlevers and
tray, this seems like the best place for it. Having the tray =
pivot pin
offset seems to be a major factor in the unpleasant phenomenon of the
underlever pushing down on the back of a depressed key when the =
sustain pedal
is used. Yet every manufacturer I have seen, and the Renner
instructions, puts the tray pivot pin behind the underlever flange =
pin.
What am I missing?<BR><BR>Ken Z.<BR>-- <BR>Ken Zahringer, =
RPT<BR>Piano
Technician<BR>University of Missouri School of Music<BR>297 Fine Arts
Bldg<BR>Columbia, MO 65211<BR>573-882-1202<BR>cell
573-489-7529<BR></BLOCKQUOTE></SPAN></FONT></BODY></HTML>