"belly bolt" alignment creates action problem

Jon Page jon.page@verizon.net
Mon, 20 Aug 2001 21:13:56 -0400


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Would a die grinder remove enough material from the side of the bolt to 
allow the necessary clearance?

Jon Page

  PM 08/20/2001 -0400, you wrote:
>    New Pramburger 7", very nice....but.
>
>    The bolt found behind the action between the
>plate and belly is not centered.(what is the proper
>name?) It is left allot. Enough that the top bass
>hammer with una-corda pedal rubs the back nut on the
>bolt. I can barely adjust so it clears/works. Received
>a call back due to the note being sluggish again.
>There was a once again a little contact. I adjusted
>again, but there is so little tolerance, humidity is
>very high right now..... its going to be a problem.
>
>    SO....With full tension on a 7" dare I remove this
>and move it. If the plate flexes a little I doubt
>it will move back when just re-tightening the bolt,
>or will it? Risky or not?
>                            Dave Renaud, RPT
>                            Canada
>
>    And no more adjustment will help. The una-corda
>is minimized, the shanks on the top 5 notes over ,
>somewhat left of center, as much as I dare. I could
>shave the hammer, but it is an 7" concert instrument
>with the bolt mis-aligned and I dare not compound
>the problem, compensating by introducing yet more
>problems.
>
>PS. It is a very nice sounding instrument.
>     Young Chang has a made good progress with these
>     Pramburgers.
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>_______________________________________________________
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