[pianotech] Re-pinning

[reggaepass at aol.com]

If you are not comfortable with restringing the piano on a factory quality level, get an estimate from someone you trust and see if Schimmel will cover it.
If the will, that would be a great learning opportunity on someone else's nickel, and not even your responsibility!


Alan Eder


-----Original Message-----
From: mario <mario at pianosinsideout.com>
To: pianotech <pianotech at ptg.org>
Sent: Thu, Oct 28, 2010 9:57 am
Subject: Re: [pianotech] Re-pinning


Schimmel won't like this, but I would ask for a replacement piano. Or let them replace the pinblock/pins/strings. If the owner insists on having the issue dealt with locally, I wouldn't accept replacing tuning pins without also replacing the strings. Those beckets may start breaking 10 years from now because you stressed them as you took them off. 
 
If you are not comfortable with restringing the piano on a factory quality level, get an estimate from someone you trust and see if Schimmel will cover it.
 
To prevent the tuning pins from scorching the pinblock holes either use a brace or get a beefy, high torque drill and extract the pins at very low speed. 
 
Mario Igrec
 


From: paul bruesch [mailto:paul at bruesch.net] 
Sent: Thursday, October 28, 2010 1:14 PM
To: Pianotech List
Subject: [pianotech] Re-pinning



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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