This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Well, I service a beautiful little chick that is, methinks, no-way older = than the 1920's or 30's (serial number is MIA) or so and it has wooden = stack brackets, plywood actually. Don't know how long they used them ... = anyone? A little epoxy goes a long way gluing old laminations together = ... I would take the let-off rail out of the action, spray the screws and = the top of the rail with WD-40 (soak it pretty good). Then let all that = dry thoroughly--use a heat gun (careful) or hair dryer if you want to. = Then take a heavy soldering iron (not the wimpy little electronics kind) = or a pencil torch (careful) and heat each screw near the wood. Don't let = it get glowing-hot, just heat it enough so the heat transfers down into = the screw in the wood. Then gently, slowly use a reg tool to turn the = screw out, remove from the action and replace with new screws if they = are rusty. Anyway, this has worked pretty well for me twice. On a third occasion, = it was so bad that I had a cabinet shop duplicate the original rail in = rock maple; used the old rail (now in two pieces after a clumsy attempt = at drill-and-plug) as a template to mark the holes. Drilled for all the = reg and mounting screws. Used an electric drill to run the new reg = screws in and screwed on new buttons and felts. It wasn't such a bad = job, and came out great. I'd much rather have a treble string go "KWANGGGG!" when tuning than = have a regulating screw go 'penk' while regulating. Alan Barnard, The Voice of Limited Experience P.S. That's how they go, they go 'penk.' It's just so quiet no one can = hear it. ----- Original Message -----=20 From: Pianofxrguy@aol.com=20 To: pianotech@ptg.org=20 Sent: Wednesday, August 21, 2002 8:11 AM Subject: frozen adjustment screws I have a customer with a Chickering grand that I think is well over a = hundred years old. (The action brackets are wooden.) It may never have = had the action regulated. I broke the first two adj. screws I attempted = to turn, put a few drops of Protek CLP on and tried again in a week. = They were still not budging. It seems like this was discussed on the = list some time ago, but I couldn't find the right search parameters in = the search engine. Does anybody have an idea of what to drip, spray, = inject into the wood to allow movement of the screws and, ultimately, = regulation of the action? Or, alternatively, the proper search terms for = the archives? Thanks, John Stroup South Bend, Ind.=20 ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/c7/6a/b4/a6/attachment.htm ---------------------- multipart/alternative attachment--
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