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Draeger BG-4 Self Contained Breathing Apparatus. Procedures for Getting Under Oxygen:. Procedures for Getting Under Oxygen:. Put on facepiece properly and tighten straps Open cylinder valve fully, then close one-half turn Observe the monitron or sentinel pressure gauge and warning module:

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draeger bg 4 self contained breathing apparatus

Draeger BG-4 Self Contained Breathing Apparatus

Procedures for Getting Under Oxygen:

procedures for getting under oxygen
Procedures for Getting Under Oxygen:
  • Put on facepiece properly and tighten straps
    • Open cylinder valve fully, then close one-half turn
  • Observe the monitron or sentinel pressure gauge and warning module:
    • Green indicator light - apparatus O.K
    • Red indicator light - apparatus faulty
    • PSI reading
procedures for getting under oxygen1
Procedures for Getting Under Oxygen:
  • Tightly squeeze both breathing hoses and breathe in until a vacuum is produced.
  • Hold your breath for an instant;
    • The vacuum must be maintained, otherwise the straps on the mask must be tightened.
procedures for getting under oxygen2
Procedures for Getting Under Oxygen:
  • Check gauge and operation, straps, etc., prior to leaving fresh-air base.