HELiOS Portables Technical Service Manual • PN 20562190 Rev E
21
HELiOS Portables
Maintenance
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Schedule A (Biennial) Maintenance Checklist
Unit Serial Number:
Step 10 Year Service Life Year 2 Year 4 Year 6 Year 8 Year 10
1 LOX Purged From Reser voir (Repair Procedure RP3) Performed or Veried By/Date
2 Inpection for Damaged/Missing Parts Performed or Veried By/Date
3 Contents Indicator Reads Empty and Spring Scale Moves
Freely
Performed or Veried By/Date
4 Remove Cover (Repair Procedure RP4) Performed or Veried By/Date
5 Perform Liquid Leak Detector Test (Repair Procedure
RP2)
Performed or Veried By/Date
6 Perform PRV Test (Repair Procedure RP7) Performed or Veried By/Date
PRV Crack Pressure
PRV Reseat Pressure
7 Perform SRV Test (Repair Procedure RP8) Performed or Veried By/Date
SRV Crack Pressure
SRV Reseat Pressure
8 Liquid Contents/Level Indicator Test (Repair Procedure
RP6)
Performed or Veried By/Date
Contents Indicator Window Shows No Green When
Empty And Completely Green When Full
9 Pressure Retention Test (Repair Procedure RP12) Performed or Veried By/Date
Internal Pressure after 10 Minutes
Internal Pressure after 60 Minutes
10 Replace Case (Repair Procedure RP5) Performed or Veried By/Date
11 Flow Rate Test (Repair Procedure RP19)
(C=continuous; D=demand)
Performed or Veried By/Date
H300 H850
Flow Rate at: OFF O
Flow Rate at: 0.12 (C) 1.0 (C)
Flow Rate at: 0.25 (C) 2.0 (C)
Flow Rate at: 0.5 (C) 3.0 (C)
Flow Rate at: 0.75 (C) 4.0 (C)
Flow Rate at: 1.0 (D) 5.0 (C)
Flow Rate at: 1.5 (D) 6.0 (C)
Flow Rate at: 2.0 (D) 1.5 (D)
Flow Rate at: 2.5 (D) 2.0 (D)
Flow Rate at: 3.0 (D) 2.5 (D)
Flow Rate at: 3.5 (D) 3.0 (D)
Flow Rate at: 4.0 (D) 4.0 (D)
12 Inspect for Cold or Sweaty condition/ Excessive Venting
from RV
Performed or Veried By/Date
13 Perform NER Test (Repair Procedure RP22) Performed or Veried By/Date
NER Results
14 Empty Contents from Portable (Repair Procedure RP3) Performed or Veried By/Date
15 Clean and/or Disenfect Outside of Unit Performed or Veried By/Date
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