[pianotech] Repinning / pinblock replacement

Chuck Behm behmpiano at gmail.com
Mon Feb 13 13:15:53 MST 2012


>Dale,
Agreed. However, the "budget" won't allow it. 'Sides, it's not that
old...just sloppy manufacturing I suspect. I've seen so many of the Asian,
(not Japanese), pieaners, in the first year of existence, with marginally
loose pins. After 10 or so years they're just loose! Not sure why, so have
to chalk it up to something wrong on the manufacturing end. (Of course they
could be using some of that "Select Hardwood".<G>
That's my take on it,
Joe<

Joe, I've got a related situation I would appreciate your expertise on. I
don't (thankfully) work on many Asian pianos, but I was just called out to
a home in Des Moines to look at a Hamilton grand still under guarantee with
loose pins. My observation was that all the pins were uniformly loose -
averaging 15 inch pounds or so, but without any significant variation one
way or another. My best guess was that the drill bit was a bit dull, heated
up, and drilled the holes a little on the big size - therefore loose pins.
I told the factory representative that in my opinion, replacing the factory
pins with oversize pins would yield a good result.

Another tuner called in to give a second opinion recommended a whole new
pinblock, pins and strings. Long story short, the rep wants me to do the
work recommended by the second technician and is going to proceed with the
replacement of the whole works (I quoted a price for the total job which
was approximately 3.5X times that of repinning alone). I've been feeling
that it's overkill - I'll do the job but I've thought it was more than what
was needed.

In your thinking, maybe it's a good thing to take the factory pinblock out?
Just curious. I'll feel better if I know the work I'm doing on the piano is
beneficial. Or maybe I should just take the bigger paycheck and not worry -
it's not like I pushed anyone into this decision - just the opposite. Chuck
Behm
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