regulating by what the piano will allow.

[mccleskey112 at bellsouth.net]

Ron

The rule of thumb that I use in regulating is where the jack position is after let-off. If you can regulate with spec. just use your generic numbers and check the jack position after letoff. If it isn't in the right place you can use keydip or blow distance to correct it.
Good luck
Gerald McCleskey RPT
  ----- Original Message ----- 
  From: Ron and Lorene Shiflet 
  To: PTG - ask 
  Sent: Thursday, December 06, 2007 10:56 PM
  Subject: regulating by what the piano will allow. 


  Sometime ago, there was a post about how to let the piano tell you how to regulate it, as opposed to going by the specs.  I have always used the specs and done well but I am needing to regulate a small grand by the piano itself.  I have never been taught this way but would like to learn.  

  This particular piano has serious issues.  For now, I'll leave the brand out but it's a name brand.  Small grand, under 5 ft.  Maybe 15 years old.  Little wear.  The factory workers screwed the stretcher bar 1/4" too low.  The action was probably regulated on a bench and the hammers had to be forced down while they crammed the action into the cavity.  The damper wires were so long, they came out the bottom of the blocks and rubbed into the flanges below.  They rang...surprise, surprise.  Nobody bothered with a quality control.  When I bought the piano, the owner hinted something was wrong and I think it went from owner to owner, but nobody fixed it.  No dealer prep...nothing.  I got a good price but wish I had paid less.

  Stretcher is now properly installed and the action actually fits into the cavity.  Dampers no longer ring as I trimmed 1/4" off the bottom of the wires and re-regulated.  I am trying to regulate the action but the back of the jack will not line up parallel with the back of the knuckle core.  The only way possible is to crank up the capstans so high the action would never go into the piano and it would have 1" hammer blow distance.  

  Is this the dilemma of a compact action?  Can someone paste a link to the posts about how to regulate by letting the piano tell you?

  thanks in advance.

  Ron

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