HP 5890 SERIES II Service Manual page 190

28. Connect the cryogenic fluid supply fittings to the valve.
29. Turn the fluid supply on.
30. Verify no leakage occurs at the fitting to the valve body.
31. If there is no evidence of leakage, replace the panels removed at the beginning of this proce-
dure.
32. Connect any gas supplies disconnected in step 4 of this procedure.
33. Restore power to the instrument.
34. Check that the oven controls properly at some selected subambient temperature (e.g., - 10_C),
and that no cryogenic fluid flows into the oven at a selected temperature above ambient (e.g.,
100_C).
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SVC 5- 28