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AIRSOURCE III SECOND STAGE OWNERS MANUAL
QUICK REFERENCE
RELIEF VALVE
CORRUGATED HOSE
TRIM GRIP
MOUTHPIECE
INSTALLATION
Aqualung recommends that you bring your Airsource, buoyancy compensa-
tor and regulator together to your authorized dealer for the installation of
your Airsource. The retailer can also answer any questions you may have
pertaining to the information in this manual. If it is not possible to return to
your authorized dealer, you may install the Airsource onto your BC and at-
tach the MP inflator hose to your first stage by carefully following the steps
in the following procedure.
Attaching Airsource to BC
To install, unscrew original inflator assembly coun-
terclockwise at the shoulder. Place new Airsource
assembly onto threaded portion, and screw clock-
wise until tight. Make sure the gasket is in place and
in good condition on the threaded portion of the BC.
Attaching MP Hose to the First Stage
WARNING:
DO NOT connect the inflator hose to a high
pressure (HP) port. This may cause the hose to burst when
pressurized, which can result in serious injury. If you are
unsure which regulator port is medium pressure (MP) or
high pressure (HP), consult your regulator owner's manual
or your dealer before attaching the hose.
1. Remove the medium pressure (MP) inflator hose from the male QD fitting
of the Airsource by grasping the collar of the MP inflator hose and sliding it
upwards. detach the MP inflator hose from the middle and upper hose guides.
UPPER HOSE
GUIDE
MEDIUM PRESSURE
(MP) HOSE
MIDDLE HOSE GUIDES
QUICK DISCONNECT FITTING (QD)
POWER INFLATION BUTTON
ORAL INFLATION/DEFLATION
BUTTON
PURGE BUTTON
2. Remove the port plug from a medium pressure (MP) port on the regulator
using an appropriately sized wrench. Check to ensure the hose o-ring is present
and in good condition, tighten the threaded end of the hose into the port. Torque
to 40 inch-pounds (4.5 Nm) with a 9/16" wrench.
Removal/Replacement of the Airsource from the
Trim Grip
The Airsource is specifically designed so that the lower unit can be easily
detached and stored with your regulator.
1. REMOVAL: While holding the molded hose steady just below the Trim
Grip™, turn the Trim Grip 1/4 turn clockwise with the other hand. Pull the Trim
Grip upward to disengage the lower assembly.
2. REPLACEMENT: Follow step #1 in reverse order.
3. To re-attach the MP inflator hose, push the QD hose fitting onto the male
QD fitting of the Airsource. Ensure the MP hose is securely connected. Clip the
MP hose into the hose guides.
WARNING:
DO NOT disconnect the MP inflator hose while
underwater unless in an emergency situation. Disconnecting
the MP inflator hose while underwater will allow water and
debris to enter the regulator causing premature wear and
possible freeflow. If the MP inflator hose is disconnected while
underwater, the Airsource must be returned to an Authorized
Aqualung Dealer for service.
INFLATION
BC Inflation
Just as with a conventional inflator, power (MP) or oral inflation can be
utilized when using the Airsource. Both procedures need to be practiced
to become familiar.
Medium Pressure (MP) Power Inflation
The power inflator is a primary means for adding air to the flotation cell.
The power inflation system enables you to inflate the BC simply by pressing
the small grey inflation button. With practice you will soon be able to quickly
make buoyancy adjustments without interrupting your diving activity.
NOTE:
Whenever inflating or deflating your BC, be sure to make
small but frequent adjustments. Larger adjustments make the
maintenance of neutral buoyancy difficult.
CAUTION:
If when pressing the red inflation button there is
no airflow, confirm the medium pressure (MP) inflator hose is
attached securely.
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