Squeeky jack spring??!

[Joe And Penny Goss]

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Do check the letoff button rail screws.
Joe Goss
imatunr@srvinet.com
www.mothergoosetools.com
  ----- Original Message -----=20
  From: Susan Kline=20
  To: Pianotech=20
  Sent: Saturday, November 09, 2002 11:22 PM
  Subject: Re: Squeeky jack spring??!


  At 11:48 PM 11/9/2002 -0800, you wrote:

    Help! Please! I've a customer with a newer Kawaii grand with wood =
whippens and black plastic jacks. She has noticed (I confess I can =
barely, and never would have heard it) a slight rubbing sort of sound =
when a couple of keys are played very softly and slowly. Looks/sounds to =
me like sound occurs when jack is activated. I notice that jack spring =
on her piano goes into a hole in the jack which appears to be a looser =
fit than my older Kawaii with wooden jacks, I've tried a tiny drop of =
clp lube in spring hole on jack and on jack centerpin with no result. =
I'm pretty sure sound is coming from jack area, Anyone have a similar =
experience?! What do I do?  Thanks in advance for all advice!!   Jon

  You've put powdered teflon on the knuckles, I take it? Have you tried =
teflon powder on the drop leathers? The "slight rubbing sound" when the =
notes are played very slowly sounds like grinding knuckles and/or drop =
screw leathers. I've never had to tinker with the hole in the jack, but =
I have sometimes found noise in the coil area of grand springs (not =
Kawai so far ...) and in the slot on the underside of the rep lever. But =
the sound of the spring jumping on impact is more a click than a =
grinding noise.=20

  Susan 
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