Dear List. I found a similar problem with a shop with which I was working. This may give you a clue. This shop had controlled humidity inside below 40% rel humidity, I don't remember how much exactly. It worked great for piano and pinblocks assembly, but when they rebushed we would have the same problem. My comment Elian ----- Original Message ----- From: Thomas D. Seay, III <t.seay@mail.utexas.edu> To: <caut@ptg.org> Sent: Monday, May 03, 1999 3:34 PM Subject: Excessive friction > Dear Colleagues, > > We here at the University of Texas at Austin are experiencing a few > intermittent problems with Renner shanks and flanges. For some unknown > reason, a dozen or so from each set will literally seize up because of > excessive friction. When we examine the shanks and flanges in question, > what we often find is friction so great that the hammershank barely swings > two times. In one case, I actually rebushed and repinned an entire tenor > section, only to have the problem return, albeit in a more limited way than > before. I might add that a drop of Protek on each bushing caused the > friction to disappear completely and immediately. The question is - where > is this friction coming from? > > This issue is NOT widespread, and is it certainly not my intention to > criticize Renner USA by rasinig it. On the contrary, I find Renner parts to > be unusually well designed and machined, which makes this issue even more > mystifying. I am wondering if anyone else has experienced this problem? > > Many thanks. > > Tom Seay > mailto:t.seay@mail.utexas.edu > > > >
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