HELiOS Portables Technical Service Manual • PN 20562190 Rev E
23
HELiOS Portables
Maintenance
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Schedule B (Continuous Pre and Post Fill Inspection) Maintenance Checklist
Unit Serial Number:
Pre Fill Visual Inspection
1 Cracking, Discoloration or Warping Veried By/Date
2 QDV Deformation Veried By/Date
3 Liquid Contents/Level Indicator Functionality Veried By/Date
4 Cryogenic Reservoir Damage (Dents,Dings) Veried By/Date
5 Visible Dirt or Contamination Veried By/Date
6 Presence of All Required Labels Veried By/Date
7
If LOX is present in Unit, Inspect for Heavy Frost or Condnesation on
the Exterior of the Unit
Veried By/Date
8
Vent Valve Functionality Ensuring that All Parts are Present and the
Valve Functions as it Should
Veried By/Date
9 FCV knob moves smoothly and encounters a detent at each setting. Veried By/Date
Post Fill Visual Inspection
1 QDV Poppet is Closed and Not Leaking Veried By/Date
2 Vent Valve is Not Leaking Veried By/Date
3 No Heavy Frost or Condensation is Present on the Exterior of the Unit Veried By/Date
4 Liquid Level Contents/Indicator Reads the Accurate Amount Veried By/Date
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