Unstable regulation

[Roger Jolly]

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Hi Gordon,
                      Sounds as if you have growing action 
brackets.   Contact Young Chang about Warranty replacement.
Good luck.

Regards Roger





At 05:13 PM 7/1/2005, you wrote:
>I have been tuning a mid-sized Young Chang grand for a
>serious client for several years now. Each time I go
>to tune it I find the hammers blocking at the strings.
>I'll turn down the let-off dowels to some degree of
>let-off to get me through the tuning. But each year I
>go back to her house the condition is the same, the
>hammers are blocking again.  I want to regulate this
>piano as it should be but I am concerned that I will
>be frustrated by whatever it is that causes the return
>of this blocking condition.
>Does this sound familiar to anyone? Could this be a
>loose let-off rail? I have marked the capstans to see
>if they were turning on their own and they don't
>appear to be.
>
>
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>
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