bobbling hammers-1993 Kranich&Bach

[Lance Lafargue]

Thanks Jon, I will try strengthening the hammer springs on a few and see
what happens, then do the set if it works.  It makes sense that it would
help to hold the hammer toward the backcheck and lessen back and forth
motion.  Thanks.
Lance Lafargue, RPT
New Orleans Chapter
Covington, LA.
lafargue@iamerica.net

----------
> From: Jon Page <jpage@capecod.net>
> To: pianotech@ptg.org
> Subject: Re: bobbling hammers-1993 Kranich&Bach
> Date: Monday, February 02, 1998 6:55 PM
> 
> Lance,
> Strengthen the hammer springs. This will prevent the 'fly-away'
> motion of the hammer and maintain a more solid blow.
> Also check hammer  blow, too much can cause this.
> Jon Page
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
> At 04:48 PM 2/2/98 -0600, you wrote:
> >Dear List,
> >I GIVE UP!  I've been trying to help a customer of mine who bought a
cheap
> >Kranich & Bach (made in Europe, 1993, sold by Baldwin) 42" upright. 
This
> >piano had double striking or bobbling hammers when I first saw it.  To
be
> >brief and to the point; I added let-off distance and dip, still some
> >bobbling on soft blows, added more, still bobbling at times, then I
added
> >key height/dip, adjusted checking, and unless you are VERY deliberate
and
> >get to the very end of each key stroke, IT STILL DOES IT occasionally.
> >Maker won't help, they said (basically) that's what you get for buying a
> >cheap piano.  Now, the piano is no fun to play and you still get the
> >occasional bobble if you're not careful.  
> >Lance Lafargue, RPT
>