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Reports until 17:33, Tuesday 02 January 2018
LHO VE
kyle.ryan@LIGO.ORG - posted 17:33, Tuesday 02 January 2018 (39953)
Miscellaneous vacuum recovery
Valved-in HAM1 500 L/s ion pump and pumped in parallel with Turbo for a few hours -> Isolated turbo and eventually shut down turbo after IP demonstrated ability to survive unassisted.  

Energized IP1, IP2 and IP3 while assisted by pump carts -> Isolated and then shut down pump carts after IP's demonstrated ability to survive unassisted.  

Valved-in GV5 AIP pump cart -> annulus volume at high pressure due to YBM vent and known inner O-ring leak -> Energized GV5 AIP controller and will pump volume with IP and pump cart overnight.  

Still need to climb on IMC and OMC tomorrow to disconnect connected pump cart hardware.
Displaying report 1-1 of 1.