Today:

1) Installed new cradle and shortened beam pipe section in wall penetration.

- Removed tank dust cover from flange and cleaned

- Held flange faces together from 2A tunnel side to check alignment, slightly biased to the East axially and a small gap present in the top when resting

2) Prepared new 2A window

- Connected preswaged  (1/2 turn) swagelok nuts to the existing copper lines in the target hall, 1/4 turn from finger tight, 3/4 turns total

- Leak checked cooling lines with pressurized air at 75psi and snoop, no leaks were found at the joint

- Grooves were cleaned and helicoflex delta seals were installed with vacuum grease used in the periphery to hold ring in window, applied at 6 points every 60deg

3) Window installation

- Lowered window into position by cooling lines

- Window located into tank flange first then slid beam pipe towards it, capturing the window with seals

- Lowered clamp into place in hole

4) Clamp installation

- Lowered clamp into access hole and started closing clamp with steel RH drive bar

- torqued to 50 ft-lbs collar gap was still ~8"

- Increased torque to 60 ft-lbs then 70 ft-lbs stopped closing of clamp when the displacement did not change between the stop ring and clamp yoke

- It was decided not to continue to close this clamp, more assessment may be necessary

6) We will attempt to pump on the seal in its current configuration, tools have been removed.