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Reports until 18:59, Tuesday 08 March 2016
LHO VE
kyle.ryan@LIGO.ORG - posted 18:59, Tuesday 08 March 2016 - last comment - 17:05, Wednesday 09 March 2016(25947)
YBM/XBM/Diagonal vent/pump prepardness activities
Kyle. Gerardo, Chandra 

Gerardo -> Installed 12" CFF at HAM10 D8 and gauge pair isolation valve on BSC4 

Chandra -> R&R LVEA Turbo levitation batteries 

Kyle -> Drilled and tapped holes, mounted scroll pump local to Diagonal Turbo and upgraded gauge controller on Diagonal Turbo 

Kyle, Chandra -> Ran QDP80s, YBM, XBM and Diagoanl Turbos and vent/purge air supply (KOBELCO).  The KOBELCO displayed a "HIGH LUBE OIL TEMP" Warning after having run for a while.  Chandra noticed that the chilled water booster pump was off and that the output pressure once on was only 60psi (this may be the result of a reduced frequency running of the chilled water circulating pump - nominally this would be 90 psi - we need to investigate)  The measured dewpoint after > 1 hour of run time was <-30C.  Gerardo noticed that the Diagonal volume was still left connected to the purge air header from when it had last been purged, the isolation valve was then closed.

NOTE: The XBM Turbo spun up to full RPM but tripped off during the braking phase.  This Turbo has a history of high vibration - typically during the accelerating phase.  

Comments related to this report
kyle.ryan@LIGO.ORG - 19:52, Tuesday 08 March 2016 (25949)
The Turbo pump controllers are being left energized overnight in the LVEA to allow the Turbo rotors to come to a full stop
chandra.romel@LIGO.ORG - 17:05, Wednesday 09 March 2016 (25968)
No FRS required. Lower than expected pressure in output from booster pump in chilled water system is likely due to difference in building chilled water pressure (variable speed pumps). 
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