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LHO VE (VE)
travis.sadecki@LIGO.ORG - posted 16:26, Thursday 18 June 2026 - last comment - 18:19, Thursday 25 June 2026(90673)
Unused HAM ISI Oplev viewports removed

Today Gerardo and I removed the unused HAM ISI Oplev viewports from the VP7 ports of both the -X input manifold and the +Y output manifold.  The ports were blanked off with 10" CF blanks.  I noted a series of 3 scratches on the angled flat of the flange, but the knife edge itself wasn't noticeably deformed.  See pics.  

Note to VAC: These will need to be leak checked during pumpdown.

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gerardo.moreno@LIGO.ORG - 18:19, Thursday 25 June 2026 (90766)VE

The rest of the unused HAM ISI Oplev viewports were removed.from the VP5 position, they were unused ISI Oplev at +X input manifold and the -Y output manifold. The ports were blanked off with CF blanks.  The 7.8" aperture MDC viewports, part number 9722012 appear to be in good shape.  The chamber flange on the output manifold had a gross scratch that I resorted to "stoning" it to remove the scratch.

One small optical lever pier was removed from the VP5 position on the input manifold +X side, near HAM3.  No issues to report.  Some of the internal components were placed in a cabinet on the south bay area, per Jason's request.

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