This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Lance, =20 Something strange going on here. You weren't clear if this is all the = way across the scale, or only in the tenor - but I think you must be = missing something somehow. Flattened knuckles will force you to have to = regulate the backchecks a little lower than spec, but only a few = millimeters. =20 If you regulate to specs, then things almost always line up well: =20 Blow 46mm Backchecks 15mm from strings Letoff 1 - 3mm Drop about 1mm below letoff Backcheck height: Backcheck tops should be 2mm - 0mm from the bottom of = the hammer tails when the hammers are held in the drop position. =20 Feel free to write to me privately if you have more observations. =20 Don Mannino -----Original Message----- From: caut-bounces@ptg.org [mailto:caut-bounces@ptg.org] On Behalf Of = lafargue@bellsouth.net Sent: Thursday, November 03, 2005 1:35 PM To: caut@ptg.org Subject: [CAUT] Kawai Regulation=20 Hi, I am working on 2 Kawai's 1989 in very nice shape, 6'6", 6'8". I am = having a regulation dilemma. With the blow distance at about 1 3/4 " (I = think spec is actually further) and other specs OK, the back shoulder of = the hammer is hitting the top of the backcheck and dragging on the = backcheck at times causing an initial friction problem in the stroke. = The backcheck angle seems good, hammers are original, etc. The only = thing I can think of to do is to raise the hammer line and hammer rest = rail to prevent it, but we're talking about =BC" or possibly more, so it = would add considerable aftertouch. I could push backchecks in deeper, = but I may start splitting wood. Am I missing something obvious? = Thanks. =20 =20 P.S. I do around 20-30 hurricane damage estimates a week; very sad most = of them. =20 =20 Lance Lafargue, RPT LAFARGUE PIANOS, LTD New Orleans Chapter, PTG 985.72P.IANO lafargue@bellsouth.net www.lpianos.com <http://www.lafarguepianos.com> =20 =20 =20 ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/caut.php/attachments/a4/e0/a7/33/attachment.htm ---------------------- multipart/alternative attachment--
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