target tensions

[Dean May]

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I recall earlier discussions about Yamaha upright spring tensions being
on the high side (damper, jack, hammer) causing poor touchweight and
bobbling hammers. I've searched the archives and found some of those
posts. What I haven't found are target tensions. In other words, what
should the tensions be set to? I've got a U3 on the bench right now and
I was wanting to play around with my Correx gages. 
 
Many thanks,
 
Dean
Dean May             cell 812.239.3359
PianoRebuilders.com   812.235.5272
Terre Haute IN  47802
 

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