Sticking Hammers

[Isaac OLEG]

Don,
When you pull out the action first , you raised the hammers vertically
to have a look at their travel and see how they move (is not it ?)= .
if so and with old corroded pins, the flange bushing have been
roughened , and disturbed by this move, as a result the center of some
hammers are extremely sluggish. Repin is necessary.

Been there some days, On a very old piano/sluggish parts, I am
cautious not to put the hammers higher than their usual path now.

The other options may be the bottom of the tuning pins protuberant and
pushing on the hammer flange rail, but I've never seen that one yet.

Hopthat helps .

Good luck

Isaac OLEG

Entretien et reparation de pianos.

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> -----Message d'origine-----
> De : pianotech-bounces@ptg.org
> [mailto:pianotech-bounces@ptg.org]De la
> part de euphoniac@juno.com
> Envoye : samedi 29 mars 2003 02:41
> A : pianotech@ptg.org
> Objet : Sticking Hammers
>
>
> I was working on a Knabe baby grand today and ran into some
> trouble.  I
> removed the action and tapped in some loose tuning pins
> (supported by a
> pinblock jack).  After I replaced the action, the hammers
> of E 2 through
> G2 became stuck after they would strike the strings.  The key wasn't
> sluggish at all, but I was able to get them to fall by
> pushing them with
> a rubber mute.  I continued to work the keys, but their hammers kept
> hanging up.  I will be working on this piano again tomorrow.
>
> I am still new in the business (a Randy Potter student) and
> I can't find
> any answers in Randy's materials or in the Reblitz book.
> Any help would
> be greatly appreciated.
>
> Don Palmire
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