chandra.romel@LIGO.ORG - posted 09:08, Tuesday 15 January 2019 - last comment - 10:14, Friday 18 January 2019(46418)
LVEA walk through - GV4 inspection & HAM7 AIP
Visually inspected GV4 and found it is equipped with a retaining nut and anti-rotation locking washer. Torque setting on pulley nut as seen in attached photo.
Again I tapped on HAM 7 annulus ion pump but the red overload light remained on, so I turned off the power supply.
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More inspections yesterday of H-GV4 to verify spacer exists and status of belts. The set screws are not visible from the peep hole, and we have no plans to drive the ball nut on this particular valve to inspect the set screws.
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