Reports until 13:14, Tuesday 21 February 2012
H2 AOS
thomas.vo@LIGO.ORG - posted 13:14, Tuesday 21 February 2012 (2273)
Custom Viewport Assemblies
Daphen P. Doug D. Joe D. Thomas V.

8 assemblies for the custom viewports were put together and proof/leak tested referencing the documents listed below.  A few minor adaptions needed to be made to the procedure for assembly, namely the torquing of the SHCS require two people, one must hold the assembly upright, while the other can torque the bolt down with 205 inch-lbs of torque (which is quite a bit, make sure you eat Wheaties beforehand). The knife edge on the bottom side of the flange must be protected from damage so we used dog clamps as spacers that prevent the knife edge from contacting the table top during the assembly phase.  

The optics were in general in good shape, except for a few particulate that were easily wiped off by drag wiping.  The flange had a few burn marks from baking but Joe had said that's pretty common and alright.

Documentation: As each viewport was assembled, we recorded the part numbers for the flange, optic, and clamp for each assembly.  The total assembly part number is D1100999 and the S/N will be recorded in ICS as each assembly is put together successively (i.e. the first 8 assembled are D1100999 S/N 001-008).  All of the assemblies were proof and leak tested by Doug, the inspection records will be attached to the assembly in ICS.

I have many pictures of the event, but a few are attached.
Images attached to this report