<!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 6.00.2800.1276" name=GENERATOR></HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Hi Isaac,</FONT></DIV> <DIV><FONT face=Arial size=2>I read into your post that you do not = use Ballistol.</FONT></DIV> <DIV><FONT face=Arial size=2>In my testing of the mineral oil I have = found that it should NOT be used on centerpins. It is however great on leather = front and balance rail pins that use leather for the bushing.</FONT></DIV> <DIV><FONT face=Arial size=2>Using Ballistol on felt in this area = swells the felt arround the pin causing more friction at the end of both forward = and at rest positions.</FONT></DIV> <DIV><FONT face=Arial size=2>Ballistol is also very good in = lubricating heavy wear points like trap work and damper rod hinge bushings even though = felt may be the bushing as the return spring device is much stiffer.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>No one out there using Goose = Juice?</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV>Joe Goss<BR><A href="mailto:imatunr@srvinet.com">imatunr@srvinet.com</A><BR><A href="http://www.mothergoosetools.com">www.mothergoosetools.com</A></DI= V> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B> <A title=oleg-i@noos.fr href="mailto:oleg-i@noos.fr">Isaac sur = Noos</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, December 21, 2003 = 3:38 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> RE: slow returning = hammers</DIV> <DIV><BR></DIV> <DIV><SPAN class=138002810-21122003><FONT face=Arial = color=#0000ff size=2>Protek experience : after a few weekswhere the parts = seem to be free the sluggish hammers are totally blocked, then you have to = do what was necessary in the first place, repin. German techs use Ballistol, = some (cheapo's)use WD40 ( the flanges are contamined afterthat, good luck = for repinning , changing them may be necessary)</FONT></SPAN></DIV> <DIV><SPAN class=138002810-21122003><FONT face=Arial = color=#0000ff size=2></FONT></SPAN> </DIV> <DIV><SPAN class=138002810-21122003><FONT face=Arial = color=#0000ff size=2>With humidity it is fairly possible that corrosion is installed on the pin, = (with time also, and that the nicel plaiting is worn).</FONT></SPAN></DIV> <DIV><SPAN class=138002810-21122003><FONT face=Arial = color=#0000ff size=2>No lube can work in this case.unfortunately.</FONT></SPAN></DIV> <DIV><SPAN class=138002810-21122003><FONT face=Arial = color=#0000ff size=2>May be the springs are too weak to help, may be also the action position = does not help the hammer to come back.</FONT></SPAN></DIV> <DIV><SPAN class=138002810-21122003><FONT face=Arial = color=#0000ff size=2>As others have say you have to be sure of where the problem come from in = the first place (and avoid also too free pinning ).</FONT></SPAN></DIV> <DIV><SPAN class=138002810-21122003></SPAN><SPAN class=138002810-21122003><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV> <DIV><SPAN class=138002810-21122003><FONT face=Arial = color=#0000ff size=2>May be ke keyboard is pushing on the whippens too much and the hammers = have been lightened by filing, then the initially slow action became sluggish.</FONT></SPAN></DIV> <DIV><SPAN class=138002810-21122003><FONT face=Arial = color=#0000ff size=2></FONT></SPAN> </DIV> <DIV><SPAN class=138002810-21122003><FONT face=Arial = color=#0000ff size=2>Repinning is not that long, but all the traveling and = aligning of the hammers afterthat turns it to a larger job that that...</FONT></SPAN></DIV> <DIV><SPAN class=138002810-21122003><FONT face=Arial = color=#0000ff size=2></FONT></SPAN> </DIV> <DIV><SPAN class=138002810-21122003><FONT face=Arial = color=#0000ff size=2>Hope that helps.</FONT></SPAN></DIV> <DIV><SPAN class=138002810-21122003><FONT face=Arial = color=#0000ff size=2></FONT></SPAN> </DIV> <DIV><SPAN class=138002810-21122003><FONT face=Arial = color=#0000ff size=2>Isaac OLEG</FONT></SPAN></DIV> <DIV><SPAN class=138002810-21122003></SPAN> </DIV> <DIV><SPAN class=138002810-21122003><FONT face=Arial = color=#0000ff size=2></FONT></SPAN> </DIV> <DIV><SPAN class=138002810-21122003><FONT face=Arial = color=#0000ff size=2></FONT></SPAN> </DIV> <DIV> </DIV> <STYLE>A.psl { COLOR: #4e81c4; 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MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px = solid"> <DIV class=OutlookMessageHeader dir=ltr align=left><FONT = face=Tahoma size=2>-----Message d'origine-----<BR><B>De :</B> pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]<B>De la = part de</B> Alpha88x@aol.com<BR><B>Envoy� :</B> dimanche 21 = d�cembre 2003 05:32<BR><B>� :</B> pianotech@ptg.org<BR><B>Objet :</B> = slow returning hammers<BR><BR></FONT></DIV><FONT = face=arial,helvetica><FONT lang=0 face=Arial size=2 PTSIZE="10" = FAMILY="SANSSERIF">Greetings,<BR><BR>     &nbs= p;      I went to a home where there was a Chickering console piano that the = hammers return at a snail's pace after the key is struck. I suggested that = the hammer bushings around their center pins may be swelled due to = humidity resulting in tightness and friction causing the slow motion = return.  He had a heater bar in the piano and I suggested that he plug it in to = dry up some moisture. He did. Two weeks later he calls and tells me it only = helped allittle and the thing is still unplayable. = <BR><BR>          &nbsp= ;  I am thinking that the only thing left to do is to bring the action = home and put it near a radiator so they dry out, and give each pin a shot of = protek. Any other suggestions? <BR><BR>thanks,<BR>Julia = Gottchall,<BR>Reading, PA = <BR><BR><BR><BR><BR></BLOCKQUOTE></BLOCKQUOTE></FONT></FONT></BODY></HTML= >