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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 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 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 Oxygen: • Check gauge and operation, straps, etc., prior to leaving fresh-air base.