chandra.romel@LIGO.ORG - posted 15:56, Friday 19 August 2016 - last comment - 17:11, Friday 19 August 2016(29206)
HAM 6 turbo spun down
Kyle, Chandra Isolated turbo on top of HAM 6 and spun it down, turned off scroll pump, decoupled foreline piping. Left turbo energized until bearing if fully de-levitated. NOTE: climbed on top of HAM 6 to do this work. Will de-energize turbo by Monday.
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I had intended to shut down the pump cart pumping the Vertex RGA (also de-energize the HAM6 turbo controller) on Saturday morning, decouple it and then combine (valve-in) the RGA to the Vertex volume. However, I forgot to get a Work Permit approved for this prior to people exiting for the weekend. I confirmed with Keita, Sheila and Terra that their activities would not be hindered by leaving this noise source running over the weekend so, I will do this on Monday morning.