Reports until 16:33, Tuesday 11 February 2014
H1 ISC (ISC)
corey.gray@LIGO.ORG - posted 16:33, Tuesday 11 February 2014 (9981)
TMS-EY Alignment Work

(Corey, Doug, Keita, Yuta)

X-Translation Push

Started off the day securing the TMS with "hard stops" and installing (7) teflon-tipped dog clamps on the TMS Upper Structure & Pusher in preparation for our horizontal translation of ~6.5mm to the "left".  Doug watched us as we pushed the entire assembly this distance.

Yaw Alignment

After the big move, we then set up to fix the yaw of the structure.  This took a few iterations, because we noticed that after we Yawed and looked good, we would back off the Pusher and see that the structure springed back a little.  So we had to figure out how to overshoot and then have it spring back to nominal.  Once Doug was happy here, we torqued down all the Dog Clamps (25ft-lbs) and moved to pitch.

Pitch Alignment

The TMS was then freed up, balanced, and prepared for pitch work.  The back end of the TMS was seen to be pitched UP, so Yuta and I moved the TMS Table Counterweights toward the back, and we were able to get the Table pretty flat according to Doug.

Clean-Up & Tomorrow

So with this alignment, with a 0.0 Pitch & Yaw bias, we had a most excellent alignment of the TMS.  Doug and Jason were excused and we worked on finishing clean-up:  remove all Pusher hardware, re-install/torque removed Dog Clamps, re-adjust BOSEMs to new alignment, and then put TMS on EQ Stops.

NEXT UP:  Install tooling to secure the TMS for Cartridge insertion.

Images attached to this report