Aqua Lung SEA MK User Manual page 16

16 SEA USER'S MANUAL
10. To conserve the limited air supply of the SEA, it is strongly recom-
mended that you perform the following pre-issue inspection of the second
stage purge while the SEA is connected to the MRS-III fill hose connector
and pressurized via the MRS-III:
a. Briefly depress the purge button to ensure that sufficient airflow
is provided to clear the second stage.
b. Immediately after releasing the purge button, listen closely to
ensure that the second stage does not continue to flow any air.
11. When the SEA has cooled and is full, turn the SEA valve handwheel
clockwise until it stops and the red indicator is visible. Close the MRS-III
panel-mounted fill valve.
12. Hold the second stage purge button depressed until airflow can no
longer be heard from the second stage and the LP hose is depressurized.
13. Open the bleeder valve knob on the MRS-III fill hose connector and
vent the pressure from the fill hose.
14. Disconnect the MRS-III fill hose connector from the SEA by rotating
the connector knob counterclockwise.
15. Replace the fill port plug into the fill port of the SEA unit and hand
tighten.
16. When all filling operations are complete, close the valves on the
MRS-III supply cylinders. Firmly grasp one of the MRS-III fill hose con-
nectors, point in a safe direction, and bleed any remaining pressure from
the system by slowly opening the corresponding panel-mounted fill valve
for that hose.
17. Close both panel-mounted fill valves and both bleeder valve knobs on
the MRS-III.
18. Attach the fill connectors to the provided mounting brackets, close and
securely latch the MRS-III cover.