Cracked Pin Block?

[Greg Casper]

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Bill:

Per an article in the PTG magazine of last month (I think), you might want
to check humidity. If the piano gets too dry the wood will compress into
itself and release it's hold on the pins. The article talked about a piano
with pins too loose to tune. A Dampp-Chaser was installed and several weeks
later, after MANY gallons of water, pins were rock solid.

Just an idea.

Greg Casper
San Jose, California
  -----Original Message-----
  From: owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org]On Behalf Of
William R. Monroe
  Sent: Tuesday, March 12, 2002 4:12 PM
  To: Pianotech
  Subject: Cracked Pin Block?


  Hi all,

  I tuned a 1900 Kroeger "Upright Grand" [giggle] today.  Very loose tuning
pins.  Tried tapping to see if that had any effect.  Helped on a couple.
Then - Ooops, where'd you go?  I tapped one in and it sunk nearly to the
winding on the pin.  And, the string required probably a full turn or more
to bring it back up to pitch (this was in the tenor).  Again, many loose
pins in this "instrument", and am curious what you all would think the
culprit is.  Also, if it were a cracked pinblock, how would you know for
certain?

  Thanks,

  William R. Monroe
  PTG Associate
  Salt Lake City, UT

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