Does anyone out there have recent comparative experience with BOTH the Renner and Tokiwa damper back-action kits? I've installed several of the Renner kits, but the quality of the pinning of this last one left a lot to be desired. As you can see in the photo the post pinning was substantially out of square. The flange pinning of this particular underlever was also off, but in the opposite direction, which had the effect of throwing the post even farther out of alignment. This was probably the worst example in the set, but many others were off by lesser amounts. I'm thinking that I might try the Tokiwa kit next time, but I've had problems with seizing centers on other Tokiwa parts in the past, and as a result I am reluctant to use them in general. Renner has also switched from beech to Delignit for the tray material, so be careful if you're drilling for the flange screws using their countersinking bit - I snapped one of the screws off due to the higher density! Next time I'll ream the holes out a few thousandths more. The other lesson that I learned on this one is to check the horizontal clearance between the backside of the post and the upstop rail. Since the new style sprung sostenuto tab flanges extend slightly behind the post they were rubbing on this particular example, which I corrected by making new pivot blocks with the hole located about 1/32" farther from the belly rail. - Mark Dierauf . -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20070115/02ec1998/attachment-0001.html -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: image/jpeg Size: 36714 bytes Desc: not available Url : https://www.moypiano.com/ptg/pianotech.php/attachments/20070115/02ec1998/attachment-0001.jpe
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