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d. GAS OUT clear leaf valve installed and seated (Reseat if loose, Replace if missing) See
replacement instructions at the end of this document.
e. Inspect green high pressure oxygen hose for cracks, dry rot, threads, Black O-ring (Replace if
damaged).
f. Connect ventilator to high pressure oxygen source, turn on Oxygen tank and ensure no leaks
present. Turn off O 2 when complete. (Conduct in environment conducive to hearing leaks)
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