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<br>
<font size=3>Let me jump on here and speculate on why this action
has<br>
these measurements and plays well, sorta.<br>
<br>
My guess is that the key ratio is high (capstans too far from b/r
hole).<br>
So with the hammer height and key dip at 'spec', the jack buried
itself<br>
into the stop felt at the end of the repetition lever and perhaps
actually<br>
restricted the full dip on the key. In order to alieve this, a shallow
dip<br>
and longer hammer blow were introduced.<br>
(I have seen this more on B's than L's).<br>
<br>
So, set the let-off on a few and see where the jack is when the
hammer<br>
is in check. The jack should be close to the knuckle rather than forced
into<br>
the stop felt.<br>
<br>
Specs are a starting point, then you have to make it work
correctly.<br>
<br>
Usually I tell a customer that I have to do x-amount of work just to
be<br>
able to tell what's wrong with it. The finer the regulation, the closer
the details.<br>
<br>
Jon Page<br>
<br>
At 05:35 PM 5/17/99 -0400, you wrote:<br>
>Andre;<br>
> How about if I/we had answered in the following manner?<br>
>-----------------------------------------------<br>
>In a message dated 5/15/1999 12:55:40 AM, Larry wrote:<br>
><br>
><<"I am a new piano tech and I am regulating my 1964
Steinway Model L before <br>
>I <br>
>sell it. The key dip is 11/32 when it should be
13/32">><br>
><br>
>Larry the key dip on a S&S 'L' is to be set at
"approximately" .420 inches <br>
>but it should be noted that keydip can vary within a suggested range
of .390 <br>
>inches and .420 inches. However extremely shallow keydip will result
in loss <br>
>of power. Extremely deep key dip will result in reduced performance
and the <br>
>sharps buring below the naturals.<br>
><br>
><<" but the hammer blow distance is 1 15/16
instead of 1 3/4. ">><br>
><br>
>Larry have the hammers been filed? or do they need to be filed now?
If so <br>
>then the specification blow distance measurements will result in
reduced <br>
>perfomance due to shorter hammer lengths if you try and get the
action <br>
>totally regulated to "specs".<br>
><br>
><<"If I adjust the dip properly the blow distance will be
even larger or it <br>
>will have too much after touch and if I adjust the blow distance
properly the <br>
>key dip will be even less. ">><br>
><br>
> Larry I think that you have 'two' terms somewhat confused, and it is
common, <br>
>"key dip" does not change with the raising or lowering of
the hammer line, <br>
>however 'aftertouch' is definitely directly and proportionally
affected by <br>
>the same raising or lowering of the hammer line. Compromise is called
for in <br>
>this situation in at 'least' two of the three factors, HL/KD/AFT, and
perhaps <br>
>none will be at "specification".<br>
> In your situation I believe that I would set my
"keydip" where I wanted it, <br>
>and make everything else work, as well as it can be made to work, and
<br>
>following the ratios given as "specs", from there.<br>
><br>
><<"The piano plays well although I remember it always felt
"shallow" even <br>
>though I liked that at the time.Any ideas as to what to do? I called
Steinway <br>
>and they were no help.">><br>
><br>
> Larry it is really hard to interpret "shallow" without
being at the piano. <br>
>Two possible reasons for the "shallow" feel would be either
very little <br>
>'aftertouch' or an actual "shallow" key dip setting. There
are other things <br>
>that might make a player complain of "shallowness" but
these are the most <br>
>common.<br>
><br>
> In summation Larry, since your 'L' is 35 years old, with all the
wear and <br>
>tear attendant to such age, the "original factory
specifications" will be <br>
>extremely useful as a "guide" but you 'will not' be able to
set all, or <br>
>perhaps any, of the specs according to those given
measurements. When your <br>
>piano was brand new the factory specs were "approximate"
settings even in the <br>
>factory, and now that your instrument is older they are even more of
an <br>
>"approximate" setting. <br>
>------------------------------------------<br>
><br>
>Andre, is that more some gooder? :-)<br>
>Jim Bryant (FL)<br>
> </font><br>
<br>
<div>Jon Page, Harwich Port, Cape Cod, Mass.
<a href="mailto:jpage@capecod.net" EUDORA=AUTOURL>mailto:jpage@capecod.net</a></div>
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