We are still at 77K! Encountered a few issues listed below.
Leak detector showing leak close to the Main Bath seal. Tried tightening screws more, but not helping much. Can still continue cooldown.
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After LN2 blowout, P2 (Main Bath pressure) not going below 30 mbar (expected to go < 0.1 mbar). Is there LN2 remained inside but not leaving the system somehow like iced up conical fill line? Or is this issue connected with Issue 1?
Started He4 pump to switch with the scroll pump and saw smoke in the exhaust!
Asking Mike to see if he have any spare pumps to use for the time.
LHe Liquifier reached Linde's repair center yesterday. Will need 2 weeks to reach back to UMN.
