| 1045 | Mixing chamber temperature at 38K, He level at 12%. Many flanges near He3 pump loose (post V6, but before pump inlet). Connect leak checker to pump exhaust lines. |
| | Open V6. Wait until leak checker settles at background leak rate of 4.7E-6 mbarL/s. |
| | While checking flange before speedivalve to right of V6, increase in leak rate to 5.0E-6 mbarL/s. Dropped to 4.8E-6 mbarL/s. Unable to repeat spike. |
| 1110 | Mixing chamber temperature dropped to 5.5K. Pump out exchange gas. Mixing chamber temperature drops then begins to increase. |
| 1120 | New background leak rate of 5.2E-6 mbarL/s. He3 pump became very loud for ~15 seconds for an unknown reason. No change in leak rate or any pressures recorded. |
| | Complete leak check. Rate rose gradually 6.1E-6 mbarL/s. |
| 1330 | Commence LHe transfer (-1.0%). |
| 1415 | Cease LHe transfer (98.7%). |
| 1545 | Prepare to pull mixture back to dump from cryopump. Pump out bellows leading to cryopump. Insert cryopump into LHe dewar. Open manual dump valves and V9, G2=625 mbar. Open V11A, V13A and V7 and pull cryopump out of dewar to the neck. Open vent speedivalve and cryopump valve (slowly). Once pressures stabilized, pull cryopump from dewar and allow to warm up, while closing V13A and opening V12A (and cold trap 1 speedivalve) and V5. He-4 pump is now pumping on cryopump. |
| 1700 | Cease pumping on cryopump. G1=1.6 mbar, P1=24 ubar, G2=651 mbar. |
| 1738 | G2=661 mbar. |
| 1750 | IVC leak rate 1.9E-6 mbarL/s. Mixing chamber temperature at 10.1K. Commence pumping on 1K pot and begin condensation procedure. |
| 1900 | G1 and G2 stabilize at ~60mbar. Commence circulation. |
| 1915 | V6 all the way open. G1 and G2 stabilize at ~100mbar. Mixing chamber temperature at 800mK and dropping. |