click noise on action shift on on Estonia--again

[David Ilvedson]

I can't remember this problem but does it happen when the cheek block is out?

David I.



----- Original message ---------------------------------------->
From: Mark Ultsch <multsch@jvlnet.com>
To: pianotech <pianotech@ptg.org>
Received: Thu, 5 Aug 2004 23:42:52 -0500
Subject: click noise on action shift on on Estonia--again

>Before the National convention I posed a problem with a clicking noise
>which seems to come from the bass cheek block when the action is
>shifting.  There doesn't seem to be any more clearance between the
>action guide pin and the guide plate than on other pianos (that's a
>quantitative analysis--isn't it?).

>Thanks for your help on this; but the problem persists.

>I've semi-rebedded the keyframe, lubed everying this reduced most of
>the fore-aft lashing of the keyframe.  While shifting, it now moves
>less than 1/16" fore-aft without being guided.  Is this considered an
>acceptable amount????

>I screwed in the screws at the dags at the rear of the action, checked
>springs, guides, pins to see that they are solidly mounted, checked
>clearance at the top of the shift lever.

>As suggested, next I'm considering adding brass tubing to the guide
>pins (+.008" to +.016" Dia); but in a way, that seems to be a bit of a
>kludge for a new piano (and I'm concerned that the customer often
>thinks the same way I do).  Comments?

>Thanks once again for enduring the verbosity.

>Mark Ultsch
>Madison


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