Aqua Lung SEA MK User Manual page 11

SEA USER'S MANUAL 11
8. When at least two minutes have elapsed, and air can no longer be
heard flowing from the supply cylinder into the SEA, turn the supply
cylinder valve completely open.
9. To conserve the limited air supply of the SEA, it is strongly recom-
mended that you perform a pre-issue inspection of the second stage
purge while it is connected to the supply cylinder as follows:
a. Depress the purge button to ensure that sufficient airflow is
provided to clear the second stage of water.
b. Immediately after releasing the purge button, listen closely to en-
sure that the second stage does not continue to flow any air.
10. While holding the first stage and fill adapter secure, turn the SEA
valve handwheel clockwise until it stops and the red indicator is visible.
Turn the handwheel of the supply cylinder valve clockwise until shut.
11. Hold the second stage purge button depressed until airflow can no
longer be heard from the second stage and the LP hose between the
first and second stages is completely depressurized (N/A to PN 108382
& 108545).
12. Open the pressure relief screw on the fill adapter to relieve the line
pressure.
13. While supporting the SEA cylinder with one hand, turn the yoke
screw of the fill adapter counterclockwise to loosen until the complete
system can be lifted off and removed from the supply cylinder valve.
14. While holding the SEA secure, turn the fill adapter counterclock-
wise at the fitting to loosen and remove from the first stage. Replace
the dust cap over the inlet fitting, and tighten the yoke screw finger tight.
15. Thread the fill port plug into the fill port until finger tight.