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<DIV><FONT size=2>You need to asses first why the action is =
light. If you
changed the s/f knuckle radius from the original, say from a 16 to a 17 =
mm, then
you may now have excess lead in the keys. If you put on a hammer =
that is
very light then you might want to take a different approach. In =
order to
decide what the best route is there needs to be more information. =
Take
sample readings of strike weights, front weights, hammer weights, up and =
down
weights from representative keys through the keyboard. How does =
the action
regulate? Is the blow and dip within normal specs? The =
problem may
be a simple act of removing some lead from the keys. Or, as =
Richard
mentioned, increasing the hammer weight. You can quickly and =
easily
increase the hammer weight by attaching small binder clips to the =
shanks.
The farther out to</FONT><FONT size=3>ward the hammer you place them, =
the more
weight you will add. On the other hand, if the action has been set =
up with
too much mechanical advantage (for example a 17 mm knuckle combined with =
a .49
key ratio, you may need to look at other solutions such as moving the =
capstan).
But you really need to get (or give) more information in order to =
analyze the
problem correctly.</FONT></DIV>
<DIV><FONT size=3></FONT> </DIV>
<DIV><FONT size=3>David Love</FONT></DIV>
<DIV><FONT size=3></FONT> </DIV>
<DIV><FONT size=3>----- Original Message ----- </FONT></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>
<A title=Wimblees@AOL.COM =
href="mailto:Wimblees@AOL.COM">Wimblees@AOL.COM</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A =
title=Pianotech@ptg.org
href="mailto:Pianotech@ptg.org">Pianotech@ptg.org</A> ; <A =
title=caut@ptg.org
href="mailto:caut@ptg.org">caut@ptg.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> February 06, 2002 12:31 =
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> make it heavier</DIV>
<DIV><BR></DIV><FONT face=arial,helvetica><FONT size=2>I just got =
done
regulating a Steinway O, (1930's vintage). It has new h.s.f., keys =
rebushed,
etc. But the down weight is less than 40 g. One piano major has =
already
complained <BR><BR>I should probably know this, but how do I make the =
action
heavier? <BR><BR>Wim</FONT> </FONT></BLOCKQUOTE></BODY></HTML>