vernon.sandberg@LIGO.ORG - posted 09:29, Wednesday 07 September 2016 (29514)
Maintenance Day Work Permit Summary for 2016 September 6
| Work Permit | Date | Description | alog |
| 6139.html | 2016-09-06 12:10 | Activity: Vent locally mounted RGA turbo pump while isolated from RGA+Vertex volume via (1) closed 1 1/2" metal valve * Repair turbo vent valve O-ring and confirm with leak detector * Remove turbo from RGA hardware and install with (1) 1 1/2" O-ring valve * Pump to rough vacuum the volume between the newly installed O-ring valve and the adjacent 1 1/2" metal valve | 29507 |
| 6138.html | 2016-09-06 11:20 | Activity: Load new debugging builds of daqd on the frame writers. Load h1fw0 & h1fw2 with a new build of daqd to help diagnose issues seen with h1fw0. Two frame writers are needed in order to do a comparison of additional output to be produced by daqd. | |
| 6137.html | 2016-09-06 10:31 | Activity: swap fw0 and fw1 10GigE fibers to see if retransmission error follows the hardware. | |
| 6136.html | 2016-09-06 09:46 | Activity: Replace the camera that allows views of the VEA with a functioning camer | |
| 6135.html | 2016-09-06 09:33 | Activity: Restore IM1-4 alignment to O1 values and use IM4 Trans and ISS2 QPD to evaluate the IMC and IM alignment. This work is best done before ISS2 array is recentered. This investigation is part of an evaluation of changes in H1 alignment since O1, including input pointing already alogged, and continuing on to changes in IMC/IM alignment. | 29500 |
| 6134.html | 2016-09-06 08:15 | Activity: Removal, repair and reinstall of demod board. | 29502 |
| 6133.html | 2016-09-02 09:39 |
Activity: Remove DC Bias on BS HEPI Servo Position: DeIsolate HEPI Loops, adjust length of Payload Springs to bring position closer to servo'd position. Reisolate. Duration 2 hours. Area of Activity: H1 SEI HEPI BS |
29495 |
| 6132.html | 2016-09-01 09:25 | Activity: Update h0vaclx and h0vacly to add input and output beam tube annulus ion pumps. Restart DAQ to add channels. | |
| 6131.html | 2016-08-31 10:21 | Activity: add all epics diagnostics channels for the frame writers to the DAQ for trending purposes. |