[CAUT] Which side to yank the butterfly spring?

[Fred Sturm]

Hi Ed,
	That's what Eric Schandall taught, and Kathy Smith as well (though  
she might have got it from Eric). Kathy likes to do springs from the  
back (action assembly turned so the checks are facing you), as your  
right hand can then snap them out to the right (a little more natural  
motion). Me, I just turn the tool and do it from the front.
	I don't know that it is common currency. And I am not sure that all  
butterfly springs (all brands) are coiled the same way. I think all  
Steinway ones are. And I have the strong impression that Kawai are as  
well. I don't think I ever read about it, though. I believe it is good  
policy, and more efficient.
Regards,
Fred Sturm
University of New Mexico
fssturm at unm.edu



On Sep 17, 2008, at 8:17 PM, Ed Sutton wrote:

> I'm reconditioning a set of wippens, and have them off the stack. As  
> I was cleaning gunk out of the rep lever groove and cleaning the  
> spring tip, I looked under the lever, at the allignment of the  
> spring coil, and it occured to me that when the spring is snapped  
> out of the groove and over to the bass side of the lever, the coil  
> can open easily when you yank on the tip of the spring to make it  
> stronger. Snap it out to the treble side and it jams against the  
> underside of the rep lever when you pull.
>
> It seems to me this would be a good policy - snap the spring out to  
> the bass side when adjusting spring tension.
>
> I don't recall reading or being taught to do it this way. Have I  
> missed something, or am I imagining that something insignificant  
> really matters?
>
> Ed Sutton

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