<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content="text/html; charset=iso-8859-1" = http-equiv=Content-Type> <META content="MSHTML 5.00.2614.3500" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY> <DIV> </DIV> <DIV><FONT face=Arial size=2>----- Original Message ----- </FONT> <DIV><FONT face=Arial size=2>From: Roger Jolly <<A href="mailto:baldyam@sk.sympatico.ca">baldyam@sk.sympatico.ca</A>></= FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>Subject: Re: Yamaha = problem</FONT></DIV></DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>> Hi Avery,<BR>>             &= nbsp;  Some of the older Yamaha bushing clips suffer from metal<BR>> fatigue = and bend. Don't try bending them unless you have a spare. OOPS!<BR>> = darn. How do I know. OOPS.</FONT></DIV> <DIV><FONT face=Arial size=2>> The left hand bushing takes a = beating over time, most often just rebushing<BR>> the clip solves the problem.</FONT></DIV> <DIV><FONT face=Arial size=2><FONT color=#0000ff>In 26 years of = Yamaha service...no metal fatigue. Maybe loose screws??</FONT></FONT><FONT = face=Arial size=2><FONT color=#0000ff></FONT></FONT></DIV> <DIV><FONT face=Arial size=2><FONT color=#0000ff>Rebushing will = help squeaks..groans..etc. Never that much uneven = damper</FONT></FONT></DIV> <DIV><FONT face=Arial size=2><FONT = color=#0000ff>lift! </FONT><BR>>There is a screw with a rubber foot on the action frame,at the treble = break<BR>> that rest against the plate web. If the rubber is fattened so you can flex</FONT></DIV> <DIV><FONT face=Arial size=2>> the action rail inward, readjust = or replace as this will increase stress on<BR>> the bushing if loose. <DIV><FONT face=Arial size=2><FONT color=#0000ff>I think you must = mean <EM>"flattened</EM>"<FONT color=#000000> (fattened might fix it) = </FONT>upright action cap<EM>.</EM> The purpose of the</FONT></FONT></DIV> <DIV><FONT face=Arial size=2><FONT color=#0000ff>action cap screw = is to eliminate the "intentional" bend in the "aluminium"</FONT></FONT></DIV> <DIV><FONT face=Arial size=2><FONT color=#0000ff>rail in order to = achieve a straight action rail!</FONT> <BR></FONT></FONT><FONT = color=#0000ff face=Arial size=2>That amount of stress is insignificant pertaining = to proper damper lift.</FONT></DIV></DIV> <DIV><FONT face=Arial size=2><FONT color=#0000ff>Once again...if = the bushing is loose, rebush. This has nothing to do with</FONT></FONT></DIV> <DIV><FONT face=Arial size=2><FONT color=#0000ff>uneven damper = lift! <U>(unless the screws are very loose)</U>  In many cases</FONT></FONT></DIV> <DIV><FONT face=Arial size=2><FONT color=#0000ff>the piano has = been drooped, resulting in a "bent" action rail. Simply = straightening</FONT></FONT></DIV> <DIV><FONT face=Arial size=2><FONT color=#0000ff>the rail will suffice.</FONT><BR>> Make sure the bass keybed nosebolt is keeping = the action secure.  The<BR>> action may be moving before the damper starts = to lift.</FONT><FONT face=Arial size=2><FONT = color=#0000ff></FONT></FONT></DIV> <DIV><FONT face=Arial size=2><FONT color=#0000ff>The action = moving( <EM>before?) </EM>the dampers start to lift after</FONT></FONT></DIV> <DIV><FONT face=Arial size=2><FONT color=#0000ff>depressing the = sustain pedal. We are leaving "basics" now!!!! </FONT></FONT></DIV> <DIV><FONT color=#0000ff face=Arial size=2>We are talking about = depressing the sustain pedal first aren't we?</FONT></DIV> <DIV><FONT face=Arial size=2><FONT = color=#0000ff></FONT></FONT> </DIV> <DIV><FONT face=Arial size=2><FONT color=#0000ff>Bob = Moffatt</FONT></FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2><FONT color=#0000ff>No = </FONT></FONT><FONT face=Arial size=2><FONT color=#0000ff>OOPS!!!</FONT></FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2><BR>> Regards Roger <BR>> = <BR>> <BR>> At 07:42 AM 13/09/00 -0500, you wrote:<BR>> >List,<BR>> = ><BR>> >   I have one of our U1D's (1972) in the shop = right<BR>> >now and have a problem I haven't, as yet, been able<BR>> >to = figure out. So, thought I might get some help<BR>> >here. :-)<BR>> >   The problem is that the damper lift with the = pedal<BR>> >is like a hanger is broken on the rod, i.e. the dampers<BR>> = >from the lower middle of the bass up to the lower tenor<BR>> >area hardly = lift at all. The remaining ones lift fairly<BR>> >well, even though not = quite evenly. The bichords hardly<BR>> >even move. What throws me, is = that with the action out<BR>> >of the piano and lifting the pedal rod by = hand, they all<BR>> >lift pretty evenly!<BR>> >   I did = notice that the bass end is not seated real well.<BR>> >There is a very slight = movement and a slight noise when I<BR>> >"wiggle" the bottom of = the bracket with my hand. It seems<BR>> >to be minimal though and I = will be adjusting it. But it<BR>> >doesn't seem like that would be enough = to cause the<BR>> >problem.<BR>> >   What am I missing? Is = there something flexing somewhere<BR>> >that could be causing this? This = is one of those actions<BR>> >with only 2 action brackets, bass and treble.<BR>> >   I really DON'T want to do a damper wire = bending job and<BR>> >then discover the problem later and have to redo = it!! :-)<BR>> >   Any ideas? Thanks.<BR>> ><BR>> >Avery<BR>> > <BR>> Roger Jolly<BR>> Saskatoon, = Canada.<BR>> 306-665-0213<BR>> Fax 652-0505<BR>> </FONT></DIV></BODY></HTML>