<html> At 10:50 AM 6/6/2002 -0400, you wrote:<br> <blockquote type=cite cite><font face="arial" size=2>I have been taught (and it says so in the regulation manuals), that the rep springs should be adjusted so that there is a "gentle rise," when you let up on the key. This winter I regulated all of the main pianos in the school, including the piano faculty pianos, with the rep spring set to give me that "gentle rise." Now, all of a sudden, piano players are complaining about poor repetition, and when I check out the pianos, there is almost no rise at all. <br> <br> Once upon a time I heard that the springs will change with the change in weather. But what is happening? How come all of my rep springs are flat? Inquiring minds want to know. <br> <br> Wim </blockquote><br> Humidity.  Unless you are going to adjust the repetition springs seasonally you have to leave them lifting faster in the winter<br> so that with the advance of the summer humidity the added friction at the shank and rep lever will allow for the proper lift.<br> <br> Adjust them in the summer and notice next winter the rate of lift and maintain that for most pianos.<br> Performance pianos require constant adjustment of the top action with seasonal changes.  If you set<br> the letoff  close in winter, they'll be blocking in summer.  the TLRG from Pianotek is perfect for these<br> seasonal touch-ups.<br> </font><br> <div>Regards,</div> <br> <div>Jon Page,   piano technician</div> <div>Harwich Port, Cape Cod, Mass.</div> <div><a href="mailto:jonpage@attbi.com" EUDORA=AUTOURL>mailto:jonpage@attbi.com</a></div> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ </html>