>Hello.I can't find my piano action book and I have to do some regulation on a >Young Chang tonight.Does anyone have the specs. for this It's a 5'10" 10year Failing in anything else I'd just go ahead and use Yamaha or Kawai specs - they should be close enough to work well. One thing I've noticed about most Asian grands is the letoff cannot be much closer than 1/8 inch with a 1/8 inch drop. >old grand.Also if you have any suggestion for making the action heavier would >be appreciated.I was thinking of using the jiffy leads. Check the hammer and rep lever pinning. If there is no resistance and you repin to 3-5 grams it should increase the touch weight enough without having to add mass to the key, plus it would make it play better. Most of the Asian pianos I see here have zero resistance in the hammer flange, and the pin is tight in the felt and loose in the wood. Repinning has always made a big improvement in the touch weight, at least in my experience. I was always taught that each gram of resistance added to a hammer flange increases the touchweight by about five grams and vice versa. While I'm on the subject, the first time I went to S&S factory I was shown an action from a mid-sixties D that had been sent back. Rather than service the teflon flanges some well-meaning technician had screwed jiffy leads under the front of each key to reduce the touchweight. You can imagine how it felt. Another, in which the teflon was "serviced" with tapered reamers, was so sloppy it never had the chance to develop good tone and of course, was light. In both cases, proper service of the teflon bushings brought the touch back to spec. John John Musselwhite, RPT Calgary, Alberta Canada musselj@cadvision.com sysop@67.cambo.cuug.ab.ca The Calgary Exhibition and Stampede - July 7-16, 1995 http://www.calgary-stampede.ab.ca/
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