Pre-Flight Inspection; Post-Flight Inspection - Aqua Lung SEA-4500 User Manual

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PRE-FLIGHT INSPECTION

The pre-flight inspection shall be performed on the SEA-4500 prior to each flight
by the air crew member to whom the unit is assigned. Pre-flight procedures are
as follows:
WARNING:
inspections shall be adhered to by all air crew members
utilizing the SEA- 4500. Any signs of discrepancies shall be
reported immediately to maintenance personnel.
1. With the system off, visually inspect the SEA-4500 for signs of damage.
Inspect front cover, exhaust cover and fittings for tightness. Inspect for tamper
dot (if command uses tamper dot) on front cover. Inspect hose for cuts and
blistering. Inspect for contamination, dirt and signs of corrosion.
CAUTION:
Purging of the SEA-4500 will deplete the pressure below the "GREEN
ZONE" and it will have to be topped off by maintenance personnel.
2. Turn the SEA-4500 "ON" by rotating the ON/OFF knob to the left
(counter-clockwise), the red indicator ring should not be visible through
the elongated holes on the knob. Ensure that the gauge reads in the
"GREEN ZONE". If the gauge does not read in the "GREEN ZONE" report
discrepancy to maintenance personnel.

POST-FLIGHT INSPECTION

1. Upon completion of flight, turn handwheel "OFF" (clockwise), so that red indicator
ring is visible through the elongated holes on the handwheel. Depress the purge
button to relieve pressure in hose and second stage. Check SEA-4500 for signs
of damage and contamination. Report discrepancies to maintenance personnel.
Strict compliance with pre-flight and post-flight
Do not press the purge button when the SEA-4500 is on.
SEA-4500 User's Manual