<html>
<head>
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
I learned somewhere some time ago that Kerosene was the recommended
lubricant for machining aluminum; perhaps a drop or two on the
offending part would help?<br>
<br>
What baffles me about the Z adjustment conjecture is that it seems
to contradict what I know of ERS geometry - I would think that the Z
adjustment is about positioning the filament in the focal point of
the ellipse, and that the lens system optics wouldn't have any
effect on that - maybe a slightly off batch of lamps?<br>
<br>
Patrick<br>
<br>
<div class="moz-cite-prefix">On 6/24/2015 6:21 PM, Steven Hood via
Stagecraft wrote:<br>
</div>
<blockquote
cite="mid:868532018.638952.1435184491035.JavaMail.yahoo@mail.yahoo.com"
type="cite">
<div style="color:#000; background-color:#fff;
font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial,
Lucida Grande, sans-serif;font-size:16px">
<div id="yui_3_16_0_1_1435184224214_2358">Lighting folks,</div>
<div id="yui_3_16_0_1_1435184224214_2358"><br>
</div>
<div id="yui_3_16_0_1_1435184224214_2358">Have any of you had an
issue with the outer (XY) knob/nut seizing the aluminum hub
casting? We have... I've had to drill out 3 of them this year
- all from units that had been assigned 36 degree lenses. It
seems like that hub casting is heating up more from having to
pull the Z adjustment so far into the reflector and seizing on
the outer nut as a result. Is there some way to prevent that
deformation?</div>
<div id="yui_3_16_0_1_1435184224214_2358"><br>
</div>
<div id="yui_3_16_0_1_1435184224214_2358">TIA,</div>
<div id="yui_3_16_0_1_1435184224214_2358">Steven R. Hood</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">____________________________________________________________
For list information see <a class="moz-txt-link-rfc2396E" href="http://stagecraft.theprices.net/"><http://stagecraft.theprices.net/></a>
Stagecraft mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Stagecraft@theatrical.net">Stagecraft@theatrical.net</a>
<a class="moz-txt-link-freetext" href="http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net">http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net</a>
</pre>
</blockquote>
<br>
</body>
</html>