Heintzman console jack return problem.

[michael lipnicki]

On some of these pianos the arc of the but is intersecting the arc of the 
jack to help this - after checking the usuall causes I've had success simply 
inserting a #22 music wire between the wippen flanges and the action rail. 
Simply loosen the flanges insert the wire and tighten the flanges - this 
changed the jack position just enough to allow the jack to return - though 
at times I've had to shimm up the hammer rail as well ( as you sugest John)

Hope this will help you


>From: staytuned@idirect.com (John Lillico, RPT)
>Reply-To: pianotech@ptg.org
>To: pianotech@ptg.org
>Subject: Re: Heintzman console jack return problem.
>Date: Mon, 6 Nov 2000 10:57:12 -0400
>
>Doug,
>
>Can you give us the serial number, style name or action maker? I'll run 
>this through my DB to see if I've had a like experience.
>
>John Lillico,
>Oakville, Ontario
>
> >Hi all,
> >
> >Heintzman console with jacks not fully returning under hammer butt.  The 
>keys
> >are weighted/balanced such that the lost motion is taken up on most keys. 
>  On
> >my experimentation key (middle C) I added a key weight which allowed me 
>to
> >feel the lost motion, but the jack still would not return when letting 
>the
> >key rise slowly.  Next I installed a new jack spring with no improvement 
>of
> >jack return.  I also checked the profile of the butt leather and it 
>looked OK
> >to me.  Graphited the top of the jack also.
> >
> >I would appreciate any insight.
> >
> >Thanks and have a great weekend.
> >
> >Doug Mahard
>
>

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