Jordan, Randy

HAM7 and the relay tube were vented this morning following venting procedures E2300169 and M1300464. RV1 remained closed along with FCV1 and FCV2, FC-A section remains under vacuum. 

Purge air particle counts were zeros, and the measured dewpoint at the HAM7 point of entry was -41.7C. Chamber was vented in ~2 hours to 780 torr, then the chamber was blown down to atmosphere ~762 torr.

Annulus ion pump was isolated, powered off and the annulus volume was vented using dry nitrogen.

After the chamber and annulus were vented, I wiped down the door flanges with IPA wipes, then Randy and I removed all but four bolts from the -Y door, +X door, and the 2x 12"CF blanks on the +Y door to be used for ISI access.

Will close WP 13283 once doors are removed next week.