Pin moves, pitch doesn't

[Andrew and Rebeca Anderson]

Dittos on the "right before the string broke" part.

Make sure the hammer is actually striking the string.  Reduce tension 
drastically until the pitch does drop.  Bring back up to pitch.  If 
problem is persistent in a section, treat the under felt-with Protek, 
no spills on the pinblock or pins please.  In rusty pianos it is 
advisable to drop pitch a little until you get a "click" before 
pulling it up.  Where it is really rusty a very conservative 
treatment with ProLube on the metal bearing points is advisable.

Good Luck,
Andrew

At 09:22 AM 4/2/2007, you wrote:
>Richard,
>
>I've experienced this more than once...a couple of times, right 
>before a string broke!
>
>Also, as David Skolnik suggested, you might check hammer/string contact.
>
>Dave Stahl, RPT
>
>Dave Stahl Piano Service
>650-224-3560
>dstahlpiano at sbcglobal.net
>http://dstahlpiano.net/
>
>
>
>
>
>
>
>-----Original Message-----
>From: rsanbornmorgan at yahoo.com
>To: pianotech at ptg.org
>Sent: Mon, 2 Apr 2007 4:21 AM
>Subject: Pin moves, pitch doesn't
>
>On Saturday, I encountered a problem I haven't experienced 
>before.  On two separate pianos, a single tuning pin would turn, but 
>the pitch wouldn't, until much later.  Test blows had no significant 
>effect.  On one piano, I muted the string, since it was an outside 
>string, and I would not see it again for a while.  On the other, I 
>got it to pitch, or so I thought.  Since I would see it again (it's 
>at my church), I didn't mute it, but figured I'd retouch it before 
>it was used next.  And, of course, that note drifted 
>noticeably.  The first piano was a spinet that hadn't been tuned in 
>a while, and the second was a Steinway M that I have tuned fairly 
>regularly, and have not experienced this problem before.
>
>What did I do to cause that phenomenon (apparently on the Steinway, 
>the problem is mine), and what can I do to fix it?
>
>Thanks in advance for all the help available from this list.
>Richard Morgan
>
>
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