[Hallb-engineering] [Revised Logentry] Follow-up Re: Follow-up Re: Follow-up Re: Follow-up Re: Follow-up Re: Hall B 4K cryoshutdown

kashy at jlab.org kashy at jlab.org
Fri Jun 22 10:50:02 EDT 2018

Logentry Text:
System modifications on the Torus and Solenoid system continued this morning.
We raised the Superconducting Helium level senosr LL8120SC by 10 inches, this should allow it to read an actual level vs 100% during stable Torus operation.
PV8674 was converted to an MV (manual valve) on Monday June 18. We need to remove the air line and update the Epics display
Also on Monday 6/18/18 RV8670 we removed the outer O-ring on the PPRV. The machined parts have come in but we are waiting for springs and thermal grease before we can put in the mechanical hardware to allow the electrical work to go forward.


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