Technical information
tank where the two meet: if the two halves of the mark separate at all during removal, you can easily
observe it by watching the mark. Nail polish or a flourescent paint should be used to make this mark, as
can an indelible, magic marker made for use on metal.
You can also maintain safer tanks by checking the valve every time prior to filling: using your hands
ONLY, attempt to remove the valve from the tank; if the valve moves or unscrews from the tank, do not
fill the tank.
CO2, regulated compressed N2 or compressed air systems which attach directly to the gun's valve are
removed using a different procedure:
(1) Insure that the valve on the tank has been turned to the OFF position. . (Consult the tank
manufacturer's instructions for this procedure.)
(2) Use the manufacturer-supplied bleed, line cut-off or slidecheck valve to discharge any residual pressure
remaining in the gun.
NOTE: If there is no bleed, line cut-off or slidecheck valve supplied with the system, the gun must be fired
in order to discharge the remaining gas. If the tank itself does not have an on/off valve, all of the gas
remaining in the tank will have to be discharged before the tank can be removed from the gun.
NOTE: Some tank configurations are not supplied with an ON/OFF or with a bleed valve. In this case it is
not possible to disconnect the tank from the gun without discharging all pressure in the tank.
2-7. REPLACING THE PROPELLANT SOURCE
CO2 and regulated compressed N2 or compressed air systems which screw directly into the gun are re-
attached using the following procedure:
(1) Visually inspect the bottle's o-ring (see diagram); replace the o-ring if it is cut, dented or torn. Insure
that the threads are clean and that the valve is free of dirt and obstructions. Place a drop or two of Pro-Lube
or silicon grease on the o-ring
(2) Place the safety of your gun in the 'Safe' position. Turn the powerfeed plug to the OFF/Blocked
position.
(3) Inspect the ASA adapter and insure that it is free of dirt and obstructions and that the internal threads
are clean. Holding the bottle in an upright position, line the bottle's threads up with the ASA adapter
(vertical or bottomline), insert the bottle into the ASA adapter and turn clockwise until the valve threads are
fully seated.
(4) Continue to turn the tank clockwise, tightening it until it is hand-tight.
(5) If the tank valve has an ON/OFF, turn the ON/OFF valve to the ON position. This will charge the gun.
If there is no ON/OFF, the valve will automatically open once it is in the proper position. Gas entering the
gun's valve will be audible.
CO2 and regulated compressed N2 or compressed air systems which connect directly to the gun valve may
be equipped with a Quick-Disconnect fitting. Before attaching the quick-disconnect, inspect the inside of
the female half of the fitting and insure that it is clean and free from dirt. A drop of Pro-Lube can also be
placed inside the fitting to lubricate the o-ring inside. Inspect the outside of the male half of the fitting and
make sure that it is clean and free from nicks, dents and scratches. Follow the manufacturers instructions
for attaching a tank with this configuration. For systems with cut-off and bleed valves, it will be necessary
to open those valves to permit gas to flow from the tank and into the gun.
2-8. REFILLING THE PRESSURE TANK
Pressure tank fills must be performed by a qualified technician according to approved industry practices.
Please obtain fills at local facilities which provide these services.










