[CAUT] puzzler

[David Ilvedson]

Whenever someone else does the puzzler, I say the same thing....when we diagnose something it's never instantaneous but trial and error....search, moving things etc. something you can't do with the puzzler...but, that being said, I think you've got it.    I removed the pedals brought down the sustain pedal lever (held up by a thin leather piece, attached to the tray with a screw) and found the pitman/pushrod's (haven't heard that one before) cloth on each end was off center and flapping with loose glue underneath.   I suspect the cloth was glued on and immediately put in the piano still wet.   A few pedal movements mis-aligned the cloth....I removed them and cleaned off dried glue, applied glue and let dry while I worked on their other grand.   

Sorry, no prize.   Spent too much this Christmas...;-]

David Ilvedson, RPT
Pacifica, California



----- Original message ----------------------------------------
From: "Ric Brekne" <ricbrek@broadpark.no>
To: caut <caut@ptg.org>
Received: 1/4/2006 7:58:54 AM
Subject: [CAUT] puzzler


>Grin..

>These things are always easy when you already know the answer.  I still 
>dont know if its at the beginning of the pedal release or at the end.  
>But as I understand it the action guises the sound if in the piano and 
>when out the sound changes from a click to a paperish sound and you can 
>identify the direction its coming from.  Loose damper tray centers on 
>Yamahas cause something not disimilar to your description... but then 
>thats also accompanied with dampers lifting uneven when one of them 
>works their way out. 

>Not knowing the exact configuration of  the pedal levers for the 
>Bosendorfer in question I'd have to guess... but it sounds like you 
>might have something wrong with the way the pushrod (pitman I think you 
>call it over there ? ) engages the damper tray.... or something of that 
>sort.  You did say no foreign materials present... so its either the 
>tray mounts / centers themselves or something about the pushrod /tray.

>OR ?!!... I'm out in left field as usual :)

>Cheers
>RicB

>----------
>The action has no bearing on it but when out of the way I can hear where 
>the problem is coming from....

>David Ilvedson, RPT
>Pacifica, California


> >Hi Dave

> >One question.  Is the noise evident at the start of damper pedal release
> >or at the end (rest position) ? Trying to figure why the action being in
> >or out should have any effect at all.... Damper levers dont come in
> >contact with the keytails.... nothing else about the action is supposed
> >to engage the damper system at all unless you have the sustenato lever
> >built into the action.  Hmmmm :)


> >Cheers
>_______________________________________________
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