29
Charging Procedure
6.2.
Recharge
Air Quality
Safety Note: Air quality for compressed air breathing systems should conform to
requirements of EN 12021. Only charge compressed air cylinders which:
1.
Conforms to National Standards.
2.
Feature original manufactures test date and test mark.
3.
Have not exceeded test due date stamped on cylinder by last testing station.
4.
Recharge to pressure stamped on neck, or shoulder of cylinder.
Recharging procedure
1.
Release the two Velcro straps from inside the carrying bag, and extract the pressure
gauge from the slot in the protective foam and take out the cylinder (fig. 3).
2.
Remove the plastic fastener from the end of the zip of the bag cutting it (fig. 9).
Save the metal “V”
shaped steel locking shaft which activates the air flow.
Note. The metal “V” shaped steel locking shaft should be equipped with an O
-ring
to keep in place the plastic fastener, however it is possible that during operation in
an emergency the metal shaped activator and the o-ring went lost. In such a case
replace with a new one. Have them and the cylinder ready.
3.
Insert the plastic ferrule by turning it till it does engage the plunger, and its shaft
inside on the activation device.
4.
Insert the straight part o
f the “V” shaped locking metal shaft with the o
-ring
through the two holes entering from the side opposite to the pressure gauge
marked with the black painting (fig. 10 e 11) and in any case so that it is inclined
respect to the axis of the cylinder and aligned with the opening direction of the zip
. Unscrew the filling port protective cover which includes the warning device (fig.
12) then connect to the EN 144-2 connector and hand tighten (fig.13).
5.
Charge cylinder until gauge needle is inside one of the two green segments of the
gauge face, depending on the charging pressure shown on the cylinder.
Note: Charging can induce an increase in temperature resulting in an incomplete
charge. It is recommended a charging rate of 27 bar/minute.
At room temperature
the gauge needle should be inside the ‘green’ segment of the
gauge face. If required top up charge.
When cylinder is fully charged vent pressure from charging hose.
Summary of Contents for 4342.8225
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