This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Willem wrote.... =20 <Greame. I guess I'll have to say it again: Fly me down there, and I'll = show=20 you. :) <To remove and install back checks, with wires, I find it works best if = you=20 put the key in a vice. Remove the wire with a pair of side cutters, but = use a=20 small block of wood as the fulcrum point, instead of the key itself. = This=20 will pull the wire out much easier and it won't elongate the hole. .=20 To install the new backcheck, I use a soft face hammer to gently tap the = new=20 wire back in. As far as height, measure the old one, and use a jig of = some=20 sort, (a hammershank with a line on it) to determine the correct height = of=20 the new one. > =20 =20 Hi Willem,=20 You could fly down and do both jobs at once (valuing pianos from a = previous enquiry). :) In this particular case, though you are probably not going to get here = on time, as I hope to complete this job in a few days. The new checks I've been supplied with are fitted to the wires already, = and my query was how to install them complete without removing the = wires. Is your method, using a soft faced hammer intended to tap the top = of the check itself or just the wire? How do some of you others approach this? The other issue of check height relates to a re-designed action, lowered = hammer centre height etc etc, so the old check height may not be the = best position, though could be a close guide. Sorry I didn't mention = this before. (Pity, you could've stayed a bit longer in NZ to solve this = one too) My thinking is that for the most efficient checking, the best situation = is to have the most hammer tail surface area in contact. Therefore, if the ideal checking distance is say, 16 mm from the string = then the top of the check could be set so tat the hammer tail is well = down the check leather. Does this make sense? Any other thoughts on this, any rules of thumb (or rule of thumbs) here? Regards Graeme Harvey New Plymouth=20 New Zealand =20 ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/f4/d1/f7/f7/attachment.htm ---------------------- multipart/alternative attachment--
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