<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; = charset=us-ascii"> <meta name=Generator content="Microsoft Word 10 (filtered)"> <style>  </style> </head> <body bgcolor=white lang=EN-US link=blue vlink=purple> <div class=Section1> I would assume you are working on a vertical piano, no?  If you have sufficient dip, and your blow = distance is not too far, you should have aftertouch (“clunk”).  = Look carefully at the tip of the jack when the key is fully depressed.  = It should clear the butt by a clear amount (about 1/16”).  See = if the hammer has some slight forward movement after the hammer is caught by = the backcheck as you go through the final bottoming of the key.  This will be = present if the regulation is correct.  If you don’t have aftertouch, = decrease the blow distance (move the hammers closer to the strings) by shimming = up the hammer rest rail with punchings or felt and adjusting the capstans to = remove lost motion.  Check the jack tips to see if they clear the butts, = and see if the hammer just moves slightly toward at the end of the key = stroke.  In a pinch, you can adjust the letoff a little farther away.  = Sometimes a weak hammer return spring will lessen the “clunk” feeling in = the key.  Your piano might be ok, but you wouldn’t feel the = “clunk”.  Strong return springs make a more defined letoff point and aftertouch = feel.       =       Now, if this is a grand piano, the above won’t help = much.       =       Hope this helps.  Good luck.       =       Paul McCloud       =       San Diego . -----Original = Message----- From: = pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Daniel Schreffler Sent: Tuesday, September 23, 2003 8:03 AM To: Pianotech Subject: no letoff = clunk   <div> Hello all , </div> <div> I was summoned to work on a Charles Walter = yesterday, and could not feel the letoff except on a few keys . there is plenty of = key height and dip.It looks as though someone added more key weight.I found = pencil lines on the keys where the leads looked different than the = originals.The jack seems to kinda roll off the butte with no clunk . Would someone please = help. </div> <div> Thanks </div> <div> Dan RPT </div> </div> </body> </html>