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Aeris A300 AI Manual

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A300 AI OPERATING MANUAL
© 2002 Design, 2011 Doc. No. 12-7265-r01 (12/28/11)
HPQD (HIGH PRESSURE QUICK DISCONNECT)
The HPQD (Fig. 117) allows quick removal of the A300 AI from the HP hose for Compass calibration, transport, and storage.
WARNING: Purge the complete Regulator assembly and all components prior to installing, connecting
or disconnecting the hose, the HPQD, or the A300 AI. Failure to do so could result in damage to the
equipment and/or serious personal injury.
Disconnecting the A300 AI from the HP Hose by uncoupling the HPQD:
• Ensure that the regulator system is completely depressurized.
• Hold the A300 AI firmly and unscrew the HPQD lock nut by turning it counterclockwise by hand (about 3 turns) until it just
stops (Fig. 118). Do Not use tools or force it past the stop.
• Push the hose portion of the swivel inward (toward the A300 AI) while simultaneously turning it counterclockwise about 1/4
turn* (Fig. 119), and carefully pull the hose portion outward and off the A300 AI fitting (Fig. 120).
*This disengages the QD pins located inside the hose portion of the HPQD
that hook into grooves inside the A300 AI portion securing them together.
Connecting the A300 AI to the HP Hose by coupling the HPQD:
• Hold the A300 AI firmly and grasp the hose protector, so the swivel portion of the HPQD does not turn.
• Align the two QD pins located inside the hose portion of the swivel with the lower openings of the curved grooves located
on the A300 AI fitting.
• Push the hose portion of the swivel onto the A300 AI fitting (Fig. 121) while simultaneously turning it clockwise about 1/4
turn, then pull it slightly back to ensure that it is properly connected, so the pins are engaged (hooked into the grooves).
• Hold the A300 AI firmly and tighten the HPQD lock nut by turning it clockwise by hand (about 3 turns) until it stops (Fig.
122). Do Not use tools or force it past the stop.
To properly clean your HPQD after a day of diving -
• Keep the HPQD connected.
• Soak and rinse the complete HPQD assembly with A300 AI in fresh water.
• Ensure the HPQD fittings are free of any debris or obstructions. Use lukewarm water or a slightly acidic vinegar/water bath
(50% each) to dissolve any salt crystals.
• Flush with gently running fresh water.
• Shake off excess water and towel dry.
• Disconnect the HPQD.
• Protect the parts of the HPQD assembly from damage at all times when disconnected.
• Have your HPQD assembly inspected and serviced annually together with your A300 AI and Regulator system.
Connecting the A300 AI Hose to a Regulator first stage:
• Maximum Pressure = 5000 PSI (350 BAR)
• Temperature = 0 to 100°F ( - 5° to 45°C)
• Thread Size = 7/16 - 20 UNF
Attachment of the high pressure hose to the regulator first stage should be performed by an Authorized AERIS Dealer. If this is
not possible, proceed as follows:
• Locate the regulator’s high pressure port (marked HP) and remove the port plug. If there is more than one HP port plug,
determine proper orientation of the first stage on the tank before selecting a port.
• Place a small dab of halocarbon based lubricant on the hose end threads and o-ring.
• Thread the hose into the HP port and tighten clockwise with a 5/8" open end wrench until secure (35 to 40 inch pounds).
• To test the connection, attach the regulator to a full Tank, pressurize the system, and listen for leaks.
• Always direct the gauge lens away from your face when turning on the tank valve.
Fig. 117 - HPQD PROPERLY
CONNECTED
Fig. 118 - LOOSENING
Fig. 119 - DISENGAGING
Fig. 120 - DISCONNECTING
Fig. 121 - COUPLING
Fig. 122 - TIGHTENING
… 45 …


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