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5. Ensure that the SEA-4500 is supported and turn the compressor valve very slowly
counter-clockwise until it is slightly open to fill the cylinder with approximately 500 PSI /
34.5 BAR. Turn the compressor valve shut and wait 45-60 seconds before proceeding
to fill the cylinder any further. Repeat this procedure to fill the cylinder very slowly
in small increments of 500 PSI / 34.5 BAR or less, until it is filled to 4500 PSI / 310
BAR. Make sure the dial pressure gauge shows that the cylinder is filling properly.
NOTE: Always fill the cylinder as slowly as possible by turning the
handwheel of the supply valve slowly to control the rate of fill. Rapid
filling will generate heat and will result in an incomplete fill after the
cylinder cools. If the cylinder is warm to the touch afterward, the fill
rate was too rapid.
6. To conserve the limited air supply of the SEA-4500, it is strongly recommended
that you perform the following pre-issue inspection of the second stage purge
while the SEA-4500 is pressurized and connected to the fill adapter:
a. Briefly 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 ensure
that the second stage does not continue to flow any air.
7. While holding the first stage and fill adapter secure, turn the SEA-4500 valve
handwheel clockwise until it stops and the red indicator ring is visible. Turn
the compressor valve completely closed.
8. Hold the second stage purge button depressed until air flow can no longer
be heard from the second stage and the MP hose is depressurized.
9. Open the bleed valve screw on the fill adapter to relieve the line pressure.
10. While holding the SEA-4500 cylinder, turn the adapter nut counter-clockwise
to loosen and remove from the first stage. Replace protector cap on the threaded
male fitting of the fill adapter. Return the fill adapter to its storage location.
11. Thread the fill port cap back into the fill port until finger tight.
11
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