[CAUT] buzzing truck

[Joe And Penny Goss]

Hi Dale,
Is that a pinto or black eyed susan bean.
LOL only a keypad away.
Joe Goss RPT
Mother Goose Tools
imatunr at srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: "Ward & Probst, Inc" <wardprobst at wardprobst.com>
To: "'College and University Technicians'" <caut at ptg.org>
Sent: Thursday, May 15, 2008 2:17 PM
Subject: Re: [CAUT] buzzing truck


> Dave,
>
> Wheels wear out, trucks usually don't. We install a vertical brace between
> the truck plate and a bean to stiffen the assembly. Anecdotal reports are
> that it improves the touch and tone. The brace is black pipe cut and
> threaded to size with floor flanges fastened to the parts at each end.
>
> HTH,
> DP
> Dale E. Probst, RPT
> Ward & Probst, Inc.
> Wichita Falls, TX
> mailto:dale at wardprobst.com
> www.wardprobst.com
>
>
>
> -----Original Message-----
> From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
> johnsond
> Sent: Thursday, May 15, 2008 10:03 AM
> To: College and University Technicians
> Subject: [CAUT] buzzing truck
>
>
> Hi all-
>
> The truck on our #2 performance piano has a problem buzz.  It has been
> elusive for some time mostly because it's been difficult coordinating
> the occurrence of the buzz with someone else available to play the note
> while I check things out.  This finally happened yesterday.  All bolts
> are tight.  When we play a Bb there is a buzz coming from somewhere
> between the top and bottom center plates.  Laying only the weight of my
> hand on the top plate makes it stop, remove my hand and it comes back.
> It does not sound like any stray material is inside but it will not be
> possible for me to remove the truck until summer sometime. What I did
> was loosen the suspicious bolt about half way which allowed the plates
> and arm to reposition slightly, then re tighten.  I have not been able
> to make it recur since then.  It is a standard Colson truck from
> Jensen's that I guess is about 15 years old.  I am inclined to recommend
> just replacing the whole truck as I was expecting to replace the wheels
> anyway this summer.  As anyone else experienced a similar problem with a
> truck?  How long do you typically keep them on performance pianos?  Any
> other suggestions.....?    It needs to be resolved with confidence.
>
> thanks,
>
> Dennis Johnson
> St. Olaf College
>