HI Barbara, I see a lot of Kawai uprights (and others) with a squeak/groan problem. I can't tell from the photo, but if this is a pedal assy. that has the metal bolt going from the trapwork lever down through the pedal via a small hole, often the bolt will rub on the edge of the hole in the pedal. Probably the best fix I've come up with is to remove the bolt from the hole, bush the hole with leather and re-assemble. On occasion, I have enlarged the hole to accommodate bushing. Such a common problem I see, and seems like such a simple fix in the factory. Usually these assys. have a front rail punching under the pedal that the bolt goes through from the bottom to prevent metal-metal contact on the underside of the pedal, but it does nothing for the point where the bolt passes through the pedal. Good Luck. William R. Monroe ----- Original Message ----- From: "Barbara Richmond" <piano57@insightbb.com> To: "Pianotech" <pianotech@ptg.org> Sent: Thursday, February 02, 2006 11:23 AM Subject: squeeky damper springs Hey folks, 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. 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). 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? Thanks. Barbara Richmond ---------------------------------------------------------------------------- ---- > _______________________________________________ > Pianotech list info: https://www.moypiano.com/resources/#archives >
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