Look at the shape of a piano...kidney David Ilvedson, RPT Pacifica, CA 94044 ----- Original message ---------------------------------------- From: "Joe And Penny Goss" <imatunr at srvinet.com> To: "College and University Technicians" <caut at ptg.org> Received: 5/15/2008 3:16:06 PM Subject: Re: [CAUT] buzzing truck >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 >>
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