<!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=blue> <div class=Section1> When I use them (which isn’t often) I like to use them for about 9 grams worth of BW which means that you adjust enough tension so that the wippens basically float, i.e. zero weight bearing on the capstan.  You can certainly go higher but I prefer not above 15 grams.  How you use them will depend on your methodology and whether you have a screw adjust or a manual type.  Personally, I don’t use them unless I’m using a screw adjust which means Tokiwa which is why I don’t use them often preferring Renner parts.  I do wish Renner would make a screw adjust.   At any rate, the method is to weigh off the action with the springs detached with a balance weight 9 grams (or whatever you choose) heavier than you want to end up with.  Then engage the springs and adjust the tension until you have a uniform BW.  If you’ve put your UW and DW on a spread sheet Stanwood style, it’s quite easy and you can go through and basically adjust tension to achieve your new targeted UW or DW.    <div> David Love davidlovepianos@comcast.net www.davidlovepianos.com </div> -----Original Message----- From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Joe And Penny Goss Sent: Saturday, March 15, 2008 4:01 PM To: Pianotech List Subject: Re: wippen assistance please   <div> Hi Wim, </div> <div> The assist spring at the back of the wippen. </div> <div> Joe Goss RPT Mother Goose Tools <a href="mailto:imatunr@srvinet.com">imatunr@srvinet.com</a> <a href="http://www.mothergoosetools.com">www.mothergoosetools.com</a> </div> <blockquote style='border:none;border-left:solid black 1.5pt;padding:0in 0in 0in 4.0pt; margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'> <div> ----- Original Message ----- </div> <div style='font-color:black'> From: <a href="mailto:wimblees@aol.com" title="wimblees@aol.com">Willem Blees</a> </div> <div> To: <a href="mailto:pianotech@ptg.org" title="pianotech@ptg.org">pianotech@ptg.org</a> </div> <div> Sent: Saturday, March 15, 2008 3:45 PM </div> <div> Subject: Re: wippen assistance please </div> <div>   </div> <div> Joe </div> <div>   </div> <div> The rule of thumb is that after the hammer has checked, the hammer should "rise gently" when the key is released. What is considered "a gentle rise" varies, but I've always felt that a small but significant rise is good. If there is a kick, it's too strong. You should also feel the release on the key. (In actuality, the wippen pushes the key down, but we see it as a the hammer rising. But there are lots of things that effect the spring tension. The most important thing is where the hammer checks. Too high or too low will give you different results. With that comes correct key dip. The other thing that will effect rep spring tension is the spring groove. It needs to be clean but lightly lubricated. How to adjust the springs on various models is another subject. I hope this information helps you. For what it's worth, just yesterday I thought about putting together a technical on this exact subject for one of our chapter meetings. So any additional comments and suggestions will be greatly appreciated. </div> <div> Willem (Wim) Blees, RPT Piano Tuner/Technician Honolulu, HI Author of The Business of Piano Tuning available from Potter Press www.pianotuning.com </div> -----Original Message----- From: Joe And Penny Goss <imatunr@srvinet.com> To: Pianotech <pianotech@ptg.org> Sent: Sat, 15 Mar 2008 11:59 am Subject: wippen assistance please <div id="AOLMsgPart_0_c6775bbd-3fe1-4993-a31b-8488f13a5e8d"><pre style='margin-left:.5in;background:white'><tt>Hi all,</tt></pre><pre style='margin-left:.5in;background:white'><tt>I have never seen on this list the mention of what to look for in setting</tt></pre><pre style='margin-left:.5in;background:white'><tt>the wippen assist springs.</tt></pre><pre style='margin-left:.5in;background:white'><tt>Any one care to give it a go? Havt A Samick Ihat has a problem that may be</tt></pre><pre style='margin-left:.5in;background:white'><tt>related to the spring tension.</tt></pre><pre style='margin-left:.5in;background:white'><tt>Joe Goss RPT</tt></pre><pre style='margin-left:.5in;background:white'><tt>Mother Goose Tools</tt></pre><pre style='margin-left:.5in;background:white'><tt><a href="mailto:imatunr@srvinet.com">imatunr@srvinet.com</a></tt></pre><pre style='margin-left:.5in;background:white'><tt><a href="http://www.mothergoosetools.com/" target="_blank">www.mothergoosetools.com</a></tt></pre><pre style='margin-left:.5in;background:white'><tt> </tt></pre></div>  <div id=u8CA55055749FD3E-2E4-54E> <div class=MsoNormal align=center style='margin-right:0in;margin-bottom:0in; margin-left:.5in;margin-bottom:.0001pt;text-align:center'> <hr size=2 width="100%" align=center> </div> Supercharge your AIM. Get the <a href="http://download.aim.com/client/aimtoolbar?NCID=aolcmp00300000002586" target="_blank" title="http://download.aim.com/client/aimtoolbar?NCID=aolcmp00300000002586">AIM toolbar</a> for your browser. </div> </blockquote> </div> </body> </html>