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  1. Check the outside gHe pressure and make sure it is below 85 90 psi. If it's equal, near or above, then relief it's pressure down to ~80 psi.
  2. Insert the stinger into Dewar C.
  3. Set up the power supply for the "pressure builder" of the Dewar C.
  4. Navigate to the "Overview Screen" on QT HMI.
  5. Start pre-cool phase:  Open VPC → Open VJV(A/B) → Monitor TX1, TX2, TX3
  6. After ~8mins: Open magnet-bypass (hand-valve right next to the magnet flow controller) → Open VJVT on the HMI screen.
  7. After ~1min: Close VPC and monitor magnet pressure and maintain ~5psi using the pressure builder on the Dewar C.
  8. Try to regulate the pressure difference of ~4psi between the magnet and the Dewar (during the entire fill), using the pressure builder on the Dewar C.
  9. After a couple of minutes, you will observe that the magnet pressure drops down suddenly and stay around ~1.4-1.5 psi (this indicates that LHe is flowing to the magnet after the pre-cooling of the last part of the transfer line).
  10. Fill the magnet until the level shows ~44% → Open VPC → Close VJVT → Close VJV(A/B) → Close Magnet bypass hand valve. Make sure that you leave the VPC open to capture all the boil-off from the transfer line until it is warm (check TX1).