OK, thanks. I can check that next time. I did make sure there was no binding when the action was shifted. The piano is in a small church, and I don't think it gets much use. Should be safe for a few days anyway until I can get back there. JF On 6/7/07, Dean May <deanmay at pianorebuilders.com> wrote: > My understanding (and this from the Young Chang technical rep several years > ago) is that the sole purpose of those screws is for factory work only, to > enable them to put the action in and out quickly to the right location. The > cheek blocks are supposed to locate the action in the field. Part of new > piano prep work should include turning those screws in to provide clearance > with the back of the keyframe. Otherwise binding can occur during una corda > operation. > > I'd recommend you check your cheek blocks. > > Dean > > Dean May cell 812.239.3359 > > PianoRebuilders.com 812.235.5272 > > Terre Haute IN 47802 > > -----Original Message----- > From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf > Of John Formsma > Sent: Thursday, June 07, 2007 5:12 PM > To: Pianotech List > Subject: Re: Henry F. Miller fallboard problem > > It turned out to be a pretty obvious solution. The real clue was the > backcheck hung on the sostenuto bracket. > > Once the action was removed, you could see there were no adjusting > screws in the keyframe stop (a.k.a. dag). The keyframe had worked its > way back, causing the clacking of the sharps on the fallboard. With > screws in there now, and the keyframe in correct position, everything > is fine. > > Duh, I should have seen that right away. Curse my non-mechanical, > artsy-fartsy brain. <G> It's learning, though. > > JF > > On 6/6/07, Phil Bondi <phil at philbondi.com> wrote: > > John, you mentioned everything except key height to fix the > > fall board problem..although I have never heard of seasonal > > changes in key height. > > > > Personally, I would check key height before moving the fall > > board..although I have never heard of seasonal changes to > > fall boards either. I may be off with both of those > > 'non-observations'. > > > > -Phil Bondi(Fl) > > > > > > > >
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