This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Barbara: =20 First, I really dislike this pedal setup that Kawai used - I think it's in some Boston's too. There are LOTS of places to squeak. In addition to the overly complex mechanism you show in this picture, there are the usual lifter-rod-on-the-damper-lever-felts, the lifter rod bushings etc. If the metal is corroded no lubricant that I'm familiar with will help. Polishing all those friction points and then lubricating is the only thing that will help. The metal that shows in the picture appears corroded so I'd guess that the lifter rod and flanges could well be corroded as well. =20 Good luck! =20 dp =20 David M. Porritt dporritt@smu.edu ________________________________ From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Barbara Richmond Sent: Thursday, February 02, 2006 11:23 AM To: Pianotech Subject: squeeky damper springs =20 Hey folks, =20 I serviced this Kawai UST-7 (built in 1983) before Christmas. At the time, the bolts had already been installed by someone else to hold the damper pedal down, and I tightened the screws for the (right side) damper trap lever assembly to keep it from blasting off. Miracle cure! Ah, but there was still noise, I treated the damper spring felts with Protek--which seemed to take care of the squeaks. I was hoping that would be the other miracle cure. =20 I went back to take a picture of the pedal assembly, which is a little different. The damper pedal pulls down two levers--one to the right, tenor & treble, and one to the left, the bass. Could it be this set-up that makes the pedal feel somewhat stiff? It would make sense, since two trap lever springs are being pushed down. I didn't notice a stiff damper spring feel in the action itself (after I lubed the spring felt). =20 When I went back to take the picture last week, I noticed that the squeaking is back. I'll admit it, I was in a hurry and didn't take a close look at the felts. I suppose cleaning the damper springs and replacing the spring felt is next. Is there a different (faster) solution--like some miracle lubricant I haven't heard of that came on the market while I was on leave? =20 Thanks. =20 Barbara Richmond ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/6f/6b/74/52/attachment.htm ---------------------- multipart/alternative attachment--
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