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<DIV><FONT face=Arial>Many small grands work with a blow =
distance of
1-3/4" while most medium and larger grands work best with something =
closer to
1-7/8". The key here is "works best". You need to experiment and see =
what kind
of key dip works with what kind of blow distance - every action is going =
to have
some variation in geometry which will affect this relationship. But =
start with
the aforementioned and see what kind of dip you end up with - do a =
couple test
keys first to evaluate. If you like the dip, stick with it. If not =
change it a
bit.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>You need to get <STRONG>"The Piano Action =
Handbook"
</STRONG><A
href="http://www.pianotuning.com/"><STRONG>http://www.pianotuning.com/<=
/STRONG></A><STRONG>
(click on Potter Press Books).</STRONG> It has =
original factory specs
for most pianos you will every run across (yes, even for some pianos =
that you
should run across - as in with a paving machine). Factory specs are a =
good place
to start - always test a few notes first to see how things work
out.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>If your keys have lost motion, that means your =
hammer
shanks are resting on the shank cushion rail (or you've got about 76 =
grams of
friction in your wippen flange!). They should be up off the rail - in =
that
position, you will not have any lost motion and key heights will be true =
(not
necessarily level, but each key will consistently rest at a particular =
height -
until, of course, you level them).</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Punchings under the key at the center rail pin =
address key
level and capstan adjustments address blow distance. Two very different =
things
that affect one another. Read Roger Jolly's Journal articles on =
"Interactive
Regulation".</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Have fun with your adventure! One word of advice =
I can
lend you is to do your first (and second and third and.....) action =
regulation
in your own home or shop - not in the customer's home. I am still on a =
steep
learning curve when I comes to action regulation. I get so much benefit =
from
taking my time in the privacy of my shop experimenting with "what =
happens when I
do this or that". IMHO, a unhurried private environment is paramount to
successful early action regulations!</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Terry Farrell</FONT></DIV>
<DIV><STRONG><FONT face=Arial></FONT></STRONG> </DIV>
<DIV><STRONG><FONT size=5></FONT></STRONG> </DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>
<A title=Alpha88x@aol.com =
href="mailto:Alpha88x@aol.com">Alpha88x@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> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, January 30, 2004 =
6:47
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> resetting hammer blow =
line in
grands</DIV>
<DIV><BR></DIV><FONT face=arial,helvetica><FONT lang=0 =
face=Arial size=2
FAMILY="SANSSERIF"
=
PTSIZE="10">greetings,<BR><BR>  =
;
I am doing my first grand regulation and have a question. If the =
whippen and
key capstan have "lost motion" thereby making the key levels have all
different heights, then does turning the capstan take care of the key =
levels
as well as adjust the hammer blow distance? In other words are they =
one and
the same
=
adjustment?<BR><BR> =
Without having a spec manual, is there a general rule of thumb for =
obtaining
the correct hammer blow distance on grands? The piano is a Hazelton =
Brothers
6' grand.<BR><BR><BR>rookie,<BR>Julia Gottchall,<BR>Reading
=
PA<BR><BR> &nb=
sp;
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