[CAUT] Which side to yank the butterfly spring?

[Ed Sutton]

Zeno-
You may have discovered the solution to a much-discussed mystery click!!!
Ed Sutton
  ----- Original Message ----- 
  From: Zeno Wood 
  To: College and University Technicians 
  Sent: Thursday, September 18, 2008 9:17 AM
  Subject: Re: [CAUT] Which side to yank the butterfly spring?


  I've noticed that if the spring coil has side-to-side play, it can sometimes make a ticking sound whilst the note is being played.  Opening the coil can reduce this play.

  Zeno Wood



  On Wed, Sep 17, 2008 at 10:17 PM, Ed Sutton <ed440 at mindspring.com> 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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