Lost Motion and Touchweight

[Isaac OLEG]

Hello:
Schimmel have a weighted piece of wood to allow a full bunch of keys
to play pianissimmo.
I understand it is 100 g by note they try (on white keys, on sharps
the same block will be weighing more I guess).

Isaac OLEG

>
>
> Incidentally, does anyone have a range of touchweight
> parameters that is "normal" when the dampers are being
> lifted by the key? In case that question is not clear - if
> the damper pedal is not pressed down, the dampers will be
> lifted by the key. That will add to downweight. How much
> additional downweight attributable to the damper raising
> (obviously only during the last half of key movement) is
> "normal" or appropriate?
>
> ----- Original Message -----
> From: "Patrick C Poulson" <pcpoulso@pacbell.net>
> To: <pianotech@ptg.org>
> Sent: Tuesday, September 03, 2002 8:03 PM
> Subject: Lost Motion and Touchweight
>
>
> > Hello all: I got a call today from a customer whose Knabe
> console I serviced
> > at the end of July. She complained that something I did
> has made the piano
> > have a very heavy touch, not only to her but to her
> husband, and she wants
> > it put back to its former condition. I looked up my
> record on the piano and
> > saw that aside from tuning it I adjusted the lost motion.
>  I have never had
> > anyone complain about the piano having a heavy touch
> after having the lost
> > motion adjusted. My experience has been that the piano
> plays better, and
> > previous tuners may have been ignoring the need for the
> lost motion to be
> > taken up.  She says that she has had it maintained by
> well respected
> > technicians where ever she has lived, the last one being
> the technician for
> > a Steinway dealer. She has moved out of his service area,
> which is why she
> > called me.  I am at loss to figure out how taking up the
> lost motion could
> > make a piano have an uncomfortable heavy touch.  My guess
> is that she had
> > grown accustomed to playing an out of adjustment action,
> and that a properly
> > adjusted action with a firm touch feels "heavy" to her.  I have an
> > appointment tomorrow morning to check the piano over and
> do what is
> > appropriate to satisfy her, but I'm scratching my head as
> to how to put the
> > piano back out of adjustment in order to satisfy her. Has
> anyone run into a
> > similiar situation?  My notes do not mention any
> sluggishness or tightness
> > in the flanges, and she says she noticed this change in the touch
> > immediately.
> > Thanks, Patrick Poulson, RPT
> >
>