<HTML style="FONT-SIZE: x-small; FONT-FAMILY: MS Sans Serif"><HEAD> <META http-equiv=Content-Type content="text/html; charset=windows-1251"> <META content="MSHTML 6.00.5730.11" name=GENERATOR></HEAD> <BODY> <P> <DIV>Michelle said: "<FONT size=+0>Hi David and all who have made suggestions. Yes, I flicked those jacks to</FONT> <DIV><FONT size=+0>make sure the spring was still strong enough. To be very specific, here are</FONT></DIV> <DIV><FONT size=+0>the tests I did and they come from the PTG Technical Source Book. Fern</FONT></DIV> <DIV><FONT size=+0>Henry's article, Diagnosing Repetition Problems in Vertical Pianos. </FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0></FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0>1. I checked for slow hammer return by moving the hammer rest rail</FONT></DIV> <DIV><FONT size=+0>forward and back. (No slow hammers.)</FONT></DIV> <DIV><FONT size=+0>2. I checked for lost motion by pulling on the hammer rest rail.</FONT></DIV> <DIV><FONT size=+0>(There was some lost motion.)</FONT></DIV> <DIV><FONT size=+0>3. I checked the wippen centers by holding the keys down at the back</FONT></DIV> <DIV><FONT size=+0>and lifting each wippen with the other hand. (Every wippen was fine.)</FONT></DIV> <DIV><FONT size=+0>4. I checked each jack by depressing the soft pedal and tripping each</FONT></DIV> <DIV><FONT size=+0>jack. (They were happily snappy.)</FONT></DIV> <DIV><FONT size=+0>5. I checked the keys by raising the wippens below the key bed</FONT></DIV> <DIV><FONT size=+0>(remember it's a drop action) and tapping the rear of each key. (Key travel</FONT></DIV> <DIV><FONT size=+0>was fine. No friction at balance rail or front rail. They were actually</FONT></DIV> <DIV><FONT size=+0>very loose.)</FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0></FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0>The reason this is throwing me for a big loop is because the action parts</FONT></DIV> <DIV><FONT size=+0>"seem to be fine" and the keys "seem to be fine". Something isn't right.</FONT></DIV> <DIV><FONT size=+0>To add to the weirdness, it is only the notes without dampers!</FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0></FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0>In this same thread Paul suggested the following:</FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0></FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0>"Try reducing the hammer blow by shimming the hammer rail with punchings and</FONT></DIV> <DIV><FONT size=+0>see what happens. If it has any effect, then make it a permanent repair on</FONT></DIV> <DIV><FONT size=+0>the hammer rail, and accept the blow distance as the necessary compromise</FONT></DIV> <DIV><FONT size=+0>for the time being."</FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0></FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0>I tried that and the jack still tripped out and wouldn't return. </FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0></FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0>The only way I could get the notes to repeat was to adjust the let off so</FONT></DIV> <DIV><FONT size=+0>that the note was practically blocking against the string. By doing this,</FONT></DIV> <DIV><FONT size=+0>the jack wasn't actually coming out from under the hammer butt and the</FONT></DIV> <DIV><FONT size=+0>feeling when playing the notes was totally wrong. So adjusted them back to</FONT></DIV> <DIV><FONT size=+0>their original non-functioning position, and called it a day! =) </FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0></FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0>The more I'm typing, the more I think it has to be the key dip problem. I</FONT></DIV> <DIV><FONT size=+0>think I better go sleep on this one. </FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0></FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0>Keep those suggestions coming!"</FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0></FONT></DIV> <DIV><FONT size=+0></FONT> </DIV> <DIV><FONT size=+0>Michelle,</FONT></DIV></DIV> <DIV>Recently had similar "gremlins". There were two things that I tried....1st was setting checking very close. seemed to "somewhat" fix the problem. 2nd: When I took it back to the shop to replace some mouse chewed bridle straps and blow it out....I found a lot of debris left over from the mousies that I blew out...AND the bridle wires were way out of proper adjustment. Adjusted them, put the action back in and .....problem solved. Go figger.<G></DIV> <DIV>Regards,</DIV> <DIV> </DIV> <DIV>Joe Garrett, R.P.T.</DIV> <DIV>Captain of the Tool Police</DIV> <DIV>Squares R I</DIV> <DIV> </DIV> <P></P></BODY></HTML>