Diagnostic Quiz

[Alan]

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A logical diagnosis, but definitely NOT a friction problem, in this
case. It FELT like a friction problem as the pins turn up or down
substantially before the pitch changes any. But 
it's clue number two that put me on the right track to find and fix the
problem--which, btw, I've see several times in Hamilton studios that
have "been around" awhile.
 
Alan R. Barnard
Salem, MO

-----Original Message-----
From: Kevin E. Ramsey [mailto:kevin.e.ramsey@cox.net] 
Sent: Wednesday, April 07, 2004 10:33 PM
To: Pianotech
Subject: Re: Diagnostic Quiz


Clue 1:  It's got to be friction Bud.... Try some CLP on the bearing
points.
 
Clue 2:  Check string leveling. You should also check hammer flange
friction. We here in Arizona find that the pinning is way too weak, and
most of them really should be repinned, to the point that they deviate
on a hard blow to not even hit the right string of a unison... That's my
main gripe with Baldwins right now, anyway.
 
Kevin.

----- Original Message ----- 
From: HYPERLINK "mailto:tune4u@earthlink.net"Alan 
To: HYPERLINK "mailto:pianotech@ptg.org"Pianotech 
Sent: Wednesday, April 07, 2004 8:11 PM
Subject: Diagnostic Quiz

Older Hamilton Studio. 
 
Clue 1: Some strings tune oddly ... you turn the pin up (or down) quite
a bit before you hear any change in pitch. (Hint: Nothing to do with
friction or flex)
 
Clue 2: Same notes, when struck, sound more like a banjo than a piano
(very short sustain) with a hollow knocking sound superimposed. 
 
Your diagnosis, Doctors???
 
My findings tomorrow ...
 
Alan R. Barnard
Salem, MO


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