[pianotech] Re-pinning

[Avery Todd]

Paul,

My first question would be why does a 3-4 year old Schimmel need repinning
in the first place?! Why? Sounds like a warranty/replacement issue to me!
Would the repinning last as well as the original?

Avery Todd
Houston, TX

On Thu, Oct 28, 2010 at 1:14 PM, paul bruesch <paul at bruesch.net> wrote:

> I have a customer with a quite new (3-4 years old) Schimmel K120, a nice
> ~47" Studio. Nice, except that virtually all the tuning pins are barely
> tight enough to hold pitch, which of course makes it unpleasant to tune.
>
> I am in contact with Schimmel about this. They want to send me a set of
> oversize pins. I suppose anything would be an improvement, but I have a few
> apprehensions/questions/concerns...
>
> (1) I've never re-strung, nor re-pinned, an entire piano. I have replaced
> single pins here and there, and a dozen or two on an instrument (an S&S "B"
> that should have been getting rebuilt instead). On the dozen-or-two piano, I
> had a heck of a time tuning up to pitch when I replaced both pins of one
> wire. Should I replace one at a time? i.e. pull one pin, (ream/chase... see
> #2,) replace with new, pull up to pitch, pull other pin, lather rinse
> repeat? Seems like an incredible amount of tool-changing.
>
> (2) There's been much discussion on this list about reaming (chasing) for
> new pins on a restringing job, and about PDF/resin for driving the new pins.
> Any opinions as far as either of these topics for repinning a nearly-new
> piano?
>
> (3) For removing the old pins, would backing them out with a power drill
> generate too much heat? The alternative, manually backing out 200+ pins,
> seems like an incredible time suck.
>
> (4) How much time should I plan on, particularly given this is my first
> experience??
>
> (5) Would the results be significantly better than CA'ing the block, and
> worth the effort? I do think that CA'ing a nearly new block sounds like a
> sacrilege!
>
> I do have a tilter which I would think I definitely want to use.
>
> Thanks much,
> Paul Bruesch
> Stillwater, MN
>
>
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