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<DIV><FONT face=Arial size=2>While I do agree with most of the remedies recently
presented for CAF there is the possiblility of reducing hammer blow too much and
reducing power by trying to "regulate it out." Sometimes, either because upon
investigation you find that the centerpin height relationships to the string
height have been tampered with, or possibly set incorrectly originally(?!) you
may want to raise or lower the back mounting block (usually raise). If
you do this you can reduce or eliminate the tendency to lock up
on fast shallow repetition but you should rotate the entire stack around the
hammer center pin by lowering (in most cases) or raising the front mounting
block. This is the usual orientation for the stack in Steinways, higher in back.
If you just raise or lower the rear block thereby raising the wippen (repetition
support flange,ala Steinway) center you will throw the hammer center
forward or backward causing among other issues centering problems. Depending on
the degree to which one does this you may have to plug and redrill the screw
holes in the mounting blocks although usually there is enough "play" in the
cleat holes. This is the indicated "fix" in MM's fore finishing notes and Bob
Marinelli and I have done this many times. It is important to note that pinning
the balancier up is also very important as others have noted and I wouldn't want
to move the stack around without having good friciton there first. But there can
be other reasons to move the stack in this way not least of which is that
someone else has tampered with the arrangement or that is was set incorrectly
originally (?!) as I have said.</FONT></DIV>
<DIV><FONT face=Arial size=2>I would like to know what procedure you use Ed F.
for replacing 88 cushions because installing 4 shims and making a few swipes
with a plane on the mounting blocks seems like alot less work to me. But then I
've been so wrong for so long it sometimes seems like right to
me.</FONT></DIV>
<DIV><FONT face=Arial size=2>Chris Solliday</FONT></DIV></BODY></HTML>