String challenge

[gordon stelter]

A tiny amount of Protek on the bearing points will
help. Steinway uprights are also notorious for this
angular interference with smooth tuning.
     Thump


--- TLJ <chief_retired@pacinfo.com> wrote:

> I recently tuned a Shimmel 5' 8" grand for a new
> customer.  I encountered a
> "new to me" challenge.
> 
> The strings angle downward steeply as they leave the
> tuning pins.  The are
> then redirected sharpely horizontally as they pass
> through the agraffes.
> 
> As I begin to tighten a string I would frequently
> hear a pin sound.  It is
> similar to the sound heard when breaking a rusty
> bass string loose.  The
> challenge for me is that I would have to pull the
> tuning hammer quite a bit
> before anything changed. All of a sudden I would
> hear this ping sound and
> the string would suddenly go sharp. Gently loosening
> the pin "a micro
> smidge" and it would go flat.
> 
> It seems to me that the string is almost "sticking"
> to the agraffe and then
> breaking free.
> 
> This situation is making tuning stability difficult.
> Once I settle the pin
> with test blows all is fine until the owner plays
> the piano (mostly
> classical music) and then I am getting string
> movement on some notes.
> 
> This is probably a very simple issue but I am at a
> total loss.  Any
> suggestions will be appreciated.
> 
> Terry Jack
> Eugene OR chapt
> 
> 
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> 



		
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