"scrunching" in an SF10

Kevin E. Ramsey kevin.e.ramsey@cox.net
Wed, 9 Apr 2003 17:40:18 -0700


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Ron, did you try measuring the wippen/ hammer flange spread, and setting =
that before you started cranking on regulating adjustments?
Kevin.=20
  ----- Original Message -----=20
  From: Ron Koval=20
  To: pianotech@ptg.org=20
  Sent: Wednesday, April 09, 2003 1:32 PM
  Subject: "scrunching" in an SF10



  Thought I'd share today's adventure with you-

  Tuned our Baldwin 7' SF10 today for a choir competition tomorrow.  As =
I was=20
  playing at the end (check those pedals!) I noticed a scrunching noise =
coming=20
  from a key in the middle, on the downward stroke of the key.  Well, =
it's=20
  "only" a choir contest, maybe I can get to it later, you have to play =
pretty=20
  quiet to hear it.  Naw, better do it now, I'm here, and have the time.

  Hmmmm, what did they drop in there now......  No, nothing extra =
inside. =20
  Wasn't the key, so it must be the hammer or the whippen.  Went to push =
down=20
  on the balancer to check the hammer movement.  It wouldn't move.  Oh, =
oh. =20
  It seems that the hammer rail was a little loose and moved a smidgen =
towards=20
  the tail of the piano, making a few whippens drag on the rail, causing =
above=20
  mentioned noise.

  Well, that's a snap, pull on the rail and tighten down 4 screws.  Yes, =

  but.... now most of the hammers are blocking.  Wow, the rail didn't =
move=20
  that far, did it?  Guess it doesn't take much!  88 capstans, 88 drop =
screws,=20
  arghhh!

  All in all, glad I looked into it before piano recital time.


  Ron Koval
  Chicagoland



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