Stephen, Is that what Malcolm is referring to? >It's a kind of reverse pliers; when you squeeze the handle the front spreads >instead of coming together, to remove the hammer shanks from the kapsels. You >can get an O-ring separator that works pretty well....best to you, Malcolm Avery At 08:22 AM 6/12/05, you wrote: >>a picture of those pliers would be nice.<G> > >Valve spring pliers (with the tips ground down as necessary to fit the >fork spacing) work well for this job. > >> As I've worked on a few of these, it always was a pain in the butt to >> replace/install those pins and then install the Shank into the fork >> w/the proper amount of friction! Yikes said I on the first one.<G> > >All modern kapsels for use on Viennese actions (e.g. Laukuff, which come >in shiny tin plated versions or plain brass, both the same material, or >the ones solf by Zucky) are made with the wrong material. Historical >kapsels are lead-free brass which has just the correct springiness to hold >the pins/shank in place while still allowing flexibility to adjust the >tension holding them to set the friction to the desired amount. Leaded >brass is too stiff to work in this application. > >(Getting lead-free brass nowadays is possible, but not easy) > >You can get authentic - which in this case can be interpreted as "they >work" - from Paul Poletti. There are other things wrong with the modern >ones, leading to other practical problems trying to use them. > >Stephen > >-- >Dr Stephen Birkett, Associate Professor >Department of Systems Design Engineering >University of Waterloo, Waterloo ON Canada N2L 3G1 >Director, Waterloo Piano Systems Group >Associate Member, Piano Technician's Guild > >E3 Room 3158 >tel: 519-888-4567 Ext. 3792 >fax: 519-746-4791 >PianoTech Lab Room E3-3160 Ext. 7115 >mailto: sbirkett[at]real.uwaterloo.ca >http://real.uwaterloo.ca/~sbirkett >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives
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