Scott L. Ed P.
6/8/15
The following are some of the dirtiest area we have seen on the X-arm.
Cleaned 58 meters ending 8.4 meters north of HNW-4-068.

6/9/15
 Maintenance day which means we can use the Hilti HEPA vacuum, the most effective vacuum for cleaning out the support tubes. We have been holding off on using this vacuum during ER7 because of the loud thump emitted from the internal cleaning system of the hepa filter.
We will go back and clean 2 sets of support tubes and cap them, as well as move forward to clean as many supports as reasonable before the end of maintenance day at noon.
Cleaned 30 meters of tube ending at HNW-4-070. Test results posted on this A-log.
 
Robert Schofield came out to the area where we are cleaning to look at our procedure and methods of actual cleaning of the tube to investigate possible glitches seen by the control room operators during lock.

6/10/15
Remove lights, cords, vacuum machines, and all related equipment from enclosure and thoroughly clean all equipment, then relocate to next section north.
Started cleaning at HNW-4-070, cleaned 15 meters of tube.

To date we have cleaned a total of 3418 meters of tube.