I had a customer the other day who had duct taped a nut onto one of his tenor dampers. It was working but I convinced him to let me try to see what was going on...this was a Yamaha C3. The top flange of the underlever was extremely tight. I had the customer feel the friction. I tried a little Protek/Goose Juice and worked the flange but didn't get any substantial relief. (I had just before juiced some hammer flanges with good results and the underlever flange also responded to Protek but not the top flange???? What's with that?) To get the underlever out you need to raise the upstop rail (good idea to mark where it is with a pencil), remove the sostenudo blade and of course the damper/damper wire. A screwdriver removed the screw and out came the underlever. I repinned it, reversed procedures and the damper was working well without the nut/duct tape. I lifted several other underlevers and told the customer they have the same problem but they were dampening so we will fix another day... David Ilvedson, RPT Pacifica, CA 94044 Original message From: "Rick Bazemore" To: pianotech at ptg.org Received: 11/10/2006 4:31:39 AM Subject: Removing Sticking Damper Underlevers on Asian Grands OK, I've now been stumped twice on this particular problem by two fairly new Korean grand pianos. I'm convinced the problem is the underlever, but cannot get the XW#@ things out to rebush and repin them. The last time, I was able to unscrew the offender and bring it forward (but not all the way out of the damper underlever system) enough to douse it with lubricant. And it worked wonderfully for about two weeks - but just got the email this morning that it is sticking again. Help please on how best to go about getting these little devils all the way out of the piano to correctly deal with them. Please don't tell me that I'm going to have to remove the entire damper system... Rick Bazemore, RPT Social Circle, GA www.pianosintune.com Access over 1 million songs - Yahoo! Music Unlimited. -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20061110/1bc9e686/attachment.html
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