<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 5.50.4913.1100" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>"<FONT face="Times New Roman" = size=3>I'm working on regulating the action of a Heintzman baby grand.  All = my<BR>reference drawings show two separate springs for the jack and escapement<BR>lever = but this piano has only one that seems to do both jobs."</FONT></FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>    The drawings make it = appear that they are two springs, but in fact, they are one.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>"<FONT face="Times New Roman" = size=3>There is a little tiny screw at the end of the escapement lever(away from the roller).<BR>What does it do? "</FONT></FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>    It's there so that = you  can regulate the height of the jack in the window. You want the jack to be = slightly lower than the repetition lever, by about 10 thousandths of an inch. </FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>    "<FONT face="Times = New Roman" size=3>I made all of the measurements for key leveling and = dip,<BR>hammer travel and "where the jack trips".  But the touch feels "vague" = like<BR>theres no power. "</FONT></FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>    Well, it's a good = idea to begin with the manufacturors specifications, but sometimes it's better to be = able to know when they aren't going to work. In any case, set some samples and = see how it works out.  The vague touch that you're describing is probably = due to the fact that you haven't managed to get the left off and drop set up = right. After you have set your left off, set the drop for about a milimeter and = a half below that. If you have no hammer rise after drop, you probably don't = have enough key dip. If the hammer rises significantly, you have too much key = dip. </FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>    What do you mean by = "like there's no power"? If you're not getting power from the piano, then you = probably should re-check that jack to knuckle relationship. </FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>    Do you know anyone = who can check your work?  Are you in the Guild? Good idea to get together with = your local techs and ask these kind of questions, because it's really hard to learn = this stuff on an e-mail list like this. </FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>    = </FONT></DIV></BODY></HTML>