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IMPACT 754 VENTILATOR:
PRE-MISSION CHECKS AND TROUBLESHOOTING
4. GAS OUT: clear leaf valve installed and seated (Reseat if loose, replace if missing).
See replacement instructions at the end of this document.
5. Inspect green high-pressure oxygen hose for cracks, dry rot, threads, and the black O-Ring
(Replace if damaged).
6. Connect the ventilator to a high-pressure oxygen source, turn on the oxygen tank, and ensure
no leaks are present. Turn off O when complete. (Conduct in an environment conducive to
2
hearing leaks)
(continues)
2026 Standard Medical Operating Guidelines (SMOG) • 185
