Rough Regulation

[Farrell]

----- Original Message ----- 
From: "Jon Page" <jonpage@comcast.net>
To: <pianotech@ptg.org>
Sent: Sunday, April 11, 2004 3:13 PM
Subject: Rough Regulation


> Prior to 1992 the action spread was 112.5 mm.
> 
> With the shank horizontal, that would be theoretical string height.
> Subtract your l/o distance from that.
> 
> Just for fun, assume your string height as derived above.
> Measure hammer center height
> measure hammer blow
> 
> Hammer Center Height + Hammer Blow = String Height
> 
> By manipulating this equation you can ascertain whether the brackets 
> require a shim underneath.
> 
> Don't do much key leveling/dip work out of the piano.
> 
> Regards,
> 
> Jon Page, piano technician
> Harwich Port, Cape Cod, Mass.
> mailto:jonpage@comcast.net
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
> 
> 
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