Hi Dennis, I guess we know where you will be during the concerts dressed in a tux LOL You might try using a heavy oil like Ballistol to lube the movable parts. Joe Goss RPT Mother Goose Tools imatunr at srvinet.com www.mothergoosetools.com ----- Original Message ----- From: "johnsond" <johnsond at stolaf.edu> To: "College and University Technicians" <caut at ptg.org> Sent: Thursday, May 15, 2008 9:02 AM 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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