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<TITLE>Re: [CAUT] Funny Noises</TITLE>
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<FONT FACE="Verdana, Helvetica, Arial"><SPAN STYLE='font-size:12.0px'>Ken,<=
BR>
<BR>
Glad to hear of your success in solving this problem. For future reference =
other maddening sources of clicks that haven’t been mentioned in this =
great thread are loose key leads and underlever leads.<BR>
<BR>
Alan<BR>
<BR>
-- Alan McCoy, RPT<BR>
<BR>
Eastern Washington University<BR>
119 Music Bldg<BR>
Cheney, WA 99004<BR>
<BR>
(509) 359-4627<BR>
amccoy@mail.ewu.edu<BR>
<BR>
<BR>
<HR ALIGN=CENTER SIZE="3" WIDTH="95%"><B>From: </B>Ken Zahringer <Zahrin=
gerK@missouri.edu><BR>
<B>Reply-To: </B>"College and University Technicians <caut@ptg.org&=
gt;" <caut@ptg.org><BR>
<B>Date: </B>Tue, 25 Jan 2005 15:13:15 -0600<BR>
<B>To: </B>"College and University Technicians <caut@ptg.org>&qu=
ot; <caut@ptg.org><BR>
<B>Subject: </B>[CAUT] Funny Noises<BR>
<BR>
</SPAN></FONT><FONT SIZE="4"><FONT FACE="Garamond"><SPAN STYLE='font-size:1=
4.0px'>Okay, friends and neighbors, this is one for the books.<BR>
<BR>
I wrote down notes on all your suggestions, shouldered my big tool case, an=
d went downstairs to do battle with the D. I pulled the action and put=
it on a table and started checking. It bothered me a little that it t=
ook so much harder of a blow to make the note click on the bench than in the=
piano, but I figured this was due to some resonance thing going on. I=
couldn’t make it click by manually manipulating individual parts, lik=
e the jack or the rep lever, but it clicked real well when I struck the key.=
I couldn’t see the jack hitting anything, so I decided to remov=
e the hammer and see what happened. No click. In looking at the =
flange, I noticed a small black line on the underside of the nose of the fla=
nge. Aha! The jack was hitting the flange, and left a graphite mark! &=
nbsp;I replaced the hammer, and looked at it some more. For some reaso=
n, the tip of that flange was a little lower that its neighbors, as were som=
e the other clicking notes. I didn’t want to mess with key dip, =
since I just barely had enough, so I played around with shimming the flange.=
I ended up putting some travel paper under the back side of the flang=
e (opposite the drop screw) crossways, only on the vertical part of the very=
back part of the groove. I wish I could draw a picture! Any way=
, the result was to move the flange back, and raise the drop screw end as it=
rode up on the rail. Of course, this necessitated readjusting the cap=
stan, letoff, and drop. After that, no more click on the bench! =
Almost home!<BR>
<BR>
The action goes back into the piano, and it clicks just like it did before.=
The work process is interrupted at this point by a short stream of un=
printable comments. The action comes out, and I can’t make it cl=
ick for love or money. Back in, and it clicks on a keystroke that̵=
7;s barely mf. Okay, think now. It must be something in the pian=
o that’s making the noise. Dampers! Hold the damper up, pl=
ay the note. No click. Aha again! Pull the action out, wor=
k the damper. No click. Work the damper really hard. No cl=
ick. I notice that the dampers on the clicking notes travel up quite a=
bit farther than their neighbors. Finally the light comes on. E=
arlier, in regulating the sostenuto, I had bent the bracket down to get the =
bar properly lined up with the tabs. It didn’t work at all befor=
e I started working on it during semester break, and it doesn’t work n=
ow. But the click sure went away after I bent the bracket back up! &nb=
sp;The underlever was, of course, hitting the sostenuto bar. I donR=
17;t think I ever heard the jack hit the flange when the action was in the p=
iano, and I’m not sure I ever played the notes hard enough to make it =
hit. It was a rather effective distracter, though.<BR>
<BR>
Now I just hope the pianist for the Amadeus Trio won’t need the soste=
nuto Friday night. I don’t think it’s going to work until =
I replace the underlever action, and that’s not going to happen this w=
eek. Boy, I’m glad this is over.<BR>
<BR>
Ken Z.<BR>
-- <BR>
Ken Zahringer, RPT<BR>
Piano Technician<BR>
University of Missouri School of Music<BR>
297 Fine Arts Bldg<BR>
Columbia, MO 65211<BR>
573-882-1202<BR>
cell 573-489-7529<BR>
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