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Reports until 15:11, Thursday 19 December 2019
LHO VE
chandra.romel@LIGO.ORG - posted 15:11, Thursday 19 December 2019 (53993)
Crane operation at mid-Y & PT-246 trip

{Tyler, Scott}

From 1:45 pm to 2:15 pm (local), Tyler and Scott operated the overhead crane at mid-Y to set two newly rebuilt BT roughing pumping. The EH2600 blower sits on the cement slab and the EDP200 pump sits next to slab. These pumps are located next to CP4 (toward end station) and will eventually bolt to the 10" GV on side of BT.

During this exercise, PT-246 cold cathode pressure gauge tripped. It will alarm until it comes back online (sometimes takes hours).

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