<!-- Title: 17:31:08  Mon Mar 20 2006 -->
<!-- Crewchief: Willis+Pat -->
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<pre>Week of 20 Marcgh 2006</pre>


<!-- Date: Mon Mar 20 17:36:09 2006 -->
<p>We have recovered from the 8 hour power outage on Saturday. 
    The plans for this week are <a href= 
   'http://ncdf67.fnal.gov/~tesarek/shutdown06/week05.html'> 
    here.</a> The major work is on the NW toroid Hilman roller. 
    The NW toroid is scheduled to be lifted on Tuesday 
</p>
<!-- Author: Willis+Pat -->


<!-- Date: Wed Mar 22 16:02:27 2006 -->
<p>The NW toroid Hilman roller was pulled out today for inspection. 
   The conclusion is that it needs to be replaced: The metal flakes 
   seen on the flat track plate are from the center load plate  
   within the Hilman roller. At 1330 hrs, there was an inadvertent 
   building <a href='/cgi/elog/elog.pl?nb=2006&action=view&page=219&frame=2&anchor=14:01:00.078'> 
   power outage</a> in B0. Some problems, but no major ones. 
</p>
<!-- Author: Willis+Pat -->


<!-- Date: Fri Mar 24 16:25:47 2006 -->
<p>The Hilman rollers on the NW toroid steel has been replaced. The SW 
   toroid will be lifted next week and its Hilman rollers inspected. The 
   SW toriod situation is a concern, as its visible cam-follower (which 
   keep the toroid steel on the flat steel track plate) is not flush against 
   the side edge of the flat steel track plate. We still are on-track for 
   our shutdown schedule. The exception is that the plug HV CAEN SY527 
   maintenance is a bit behind schedule, but it appears likely that the 
   4 SY527 crates at PREP will be back for reinstallation next week 
   before the plug pull. 
</p> 
<p>The D0 L0 silicon installation is ahead of schedule. The old beam 
   pipe is out. The L0 detector and new beam pipe are in the D0 collision 
   hall, and are poised for the installation. The alignment fixtures 
   and other installation preparation work is being done, and both 
   are scheduled to be "in" by about 10Apr06. The rest of the D0 
   shutdown work is also progressing on or ahead of schedule. 
</p> 
<p>The Accelerator shutdown work is also on schedule. A large 
   part of the TeV magnet un-rolls has 
   been completed and is going well overall. The work on the TeV houses 
   is proceeding better than expected. TEL-1 has been opened up, and 
   the "leaky" helium line components are being replaced.  
   More will be 
   known next week if the repair is successful. The TEL-2 installation 
   is about 50% done. TEL-2 can be used to sweep beam out of the abort 
   gap in place of TEL-1, but it is still missing a HV power system. 
</p>  
<!-- Author: Willis+Pat -->


<!-- Date: Fri Mar 24 16:32:13 2006 -->
<table><tr><td><a href=/cgi/elog/det-system-elog.pl?nb=operations&action=view&page=-43&button=yes target='xxx' onclick='jswindow()'; align=top><img src=/cgi/elog/det-system-elog.pl?nb=operations&action=view&page=-43  width='300' align='top'></a></td><td>The damaged NW toroid Hilman roller. The plate in the foreground is the roller center load plate.</td></tr></table>
<!-- Author: Willis -->
<!-- Comment: Fri Mar 24 16;33;14 comment by...Willis -->
<p>For more details, see <a href=
'http://ncdf67.fnal.gov/~tesarek/shutdown06/Hillman_roller/'>
here.</a>
</p>