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<DIV><FONT face=Arial size=2>If there is lots of slop between the caster and
plate that bolts to the truck, you will get movement and strange noises.
Locking the wheel will not solve the problem. When you take the caster off
or take the weight off the wheel, check the side play of the wheel and the
unwanted slop when it turns on the bearings. Usually you can't correct
this problem since it is stamped together except maybe a heavy lubricant on
those dry bearings or new casters. Even some new casters have to much
play. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Loren</FONT></DIV>
<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=jim_busby@byu.edu href="mailto:jim_busby@byu.edu">Jim Busby</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=caut@ptg.org
href="mailto:caut@ptg.org">College and University Technicians</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, December 04, 2007 9:50
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [CAUT] unmusical caster
noise</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">All,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The rear concert caster on one of
our Ds “knocks” and I can’t seem to find the “fix”. If we orient it 90 degrees
to the player it doesn’t knock, but if the stage crew forgets and it is in
line with the player it will knock with vigorous playing. (Fairly loudly, like
someone tapping their foot.) The leg seems to be tight. It is the actual
wheel. It is the big expensive brass kind, but unfortunately not Jurgen’s. Any
simple fix?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The front castors lock (and have
no problem) but the rear doesn’t. I can’t see how/where/why it is knocking,
but it surely does.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thanks.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Jim Busby
BYU<o:p></o:p></SPAN></FONT></P></DIV></BLOCKQUOTE></BODY></HTML>