d-clicking D clicks

[John Ross]

Would C/A wick in and secure?

John Ross
Windsor, Nova Scotia, Canada
jrpiano at win.eastlink.ca
----- Original Message ----- 
From: "Conrad Hoffsommer" <hoffsoco at luther.edu>
To: "pianotech list" <pianotech at ptg.org>
Sent: Wednesday, April 09, 2008 9:46 AM
Subject: d-clicking D clicks


> Folks,
> 
> A teflon-removed, 1960s S&S D has come up with a click I'd not 
> encountered before, (or finally gotten loud enough to get on the radar 
> screen).
> 
> Loose hammerhead/screw/key lead???  I narrowed it down to the let-off 
> button/screw/rail.
> 
> I got it to click if I tap the button lightly from the front. OK, says 
> I, just screw the button back up onto the screw, and re-regulate let-off.
> 
> Wrong. Still clicks.
> 
> Grabbed button and tried wiggling again like a loose tooth. Click.
> 
> Hmmm... threads in wood worn?  Maybe screw hole looking slightly 
> tapered?  Or just another "feature"...
> 
> Wiggled tooth again, this time holding the eye of the screw.  It moved. 
> I'm thinking that eliminates the tapered hole scenario?
> 
> For some reason tried tapping along the front of the rail. Solid sound 
> except in area of the click(s).  Impure thoughts occurred.
> 
> I'm thinking that the imbedded dowel has shrunken in that area, and that 
> the click is the dowel slapping inside of the brass tube.
> 
> Any thoughts on how I should approach this?  Simply squeeze rail with 
> vise grips in that area, or would I be causing another problem by doing 
> that?
> 
> 
> 
> -- 
> Conrad Hoffsommer, RPT - Keyboard Technician
> Luther College, 700 College Dr., Decorah, Iowa 52101-1045
> 1-(563)-387-1204 // Fax 1-(563)-387-1076
>