Vs: bobbling hammers-1993 Kranich&Bach

[Lance Lafargue]

Yes Ron, got it now.  This piano bobbles even when I play it though.  I'm
afraid more than a phone call will fix this one.  Thanks for your ideas and
explanation.  I'll let you know what happens. 
Lance Lafargue, RPT
New Orleans Chapter
Covington, LA.
lafargue@iamerica.net

----------
> From: Ron Nossaman <nossaman@SOUTHWIND.NET>
> To: pianotech@ptg.org
> Subject: Re: Vs: bobbling hammers-1993 Kranich&Bach
> Date: Tuesday, February 03, 1998 8:27 PM
> 
> At 03:25 PM 2/3/98 -0600, you wrote:
> >Ron,
> >If the key is still partially depressed (that's when most of this
bobbling
> >takes place) the jack is out from under the butt and the hammer hits
> >against it causing the bobble.  If the jack spring is stronger or not,
the
> >jack will still be out and causing the bobble-am I right?  Not sure I
> >understood you.  Thanks.
> >Lance Lafargue, RPT
> >New Orleans Chapter
> >Covington, LA.
> >lafargue@iamerica.net
> >
> >
> 
> Since I think left handed, I tend to write inside out. so I'll give it
> another shot. Maybe I'll even make sense this time. As the key is
depressed,
> the spoon picks up the damper, with a detectable increase in resistance.
As
> it's depressed further, you can feel the jack foot contact the letoff
> button. The resulting change in feel is pretty dramatic in these actions
and
> seems to tell you to stop pushing because you are at the bottom of the
> stroke. You are not, and the hammer bounces off the top of the jack and
> double strikes. It seems to happen worst with light-touch pianists. The
more
> experienced players seem to really like the crisp *snap* at let-off.
People
> who traded up from mushy old actions and beginners, especially small
> children, have the worst time with this because (I think) they *ride* the
> key down with the weight of a finger or hand instead of *pushing* it
down.
> When they learn to stroke through that let-off resistance to the bottom
of
> the dip, the problem goes away. That's why I try to limit my "fixes" to
> something easily and quickly reversible. Usually just explaining what is
> happening is enough and they become aware of how they depress keys and...
> the problem goes away without me having to change a thing. This can be
one
> of those "remote hero" telephone service calls if you get lucky. Was that
> better?
> 
>  
>  Ron Nossaman
>