In prep for HAM7 closeout, the temporary viewport assembly was removed from the HAM5 relay tube port. RV-1 was closed, and the volume vented with viewport covers still installed, with dry N2. I monitored the corner pressure (PT-120B) during venting, to make sure there were no leaks through the gate valve. No change in pressure, so I continued with viewport removal.

Viewport was removed first, then the pump-out tee. The mitered spool piece and bellows assembly was installed on HAM5 side. Lines were marked across the relay tube assembly prior to removal, so the install orientation remained the same. 

The ported spool piece will be installed next week during Laser Safe conditions. Bellows flanges were covered with foil for protection.