DPI 4342.8225 Manual - Page 8

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o Insert the straight part of the pin into the hole in the black marked face, as shown in figure
10 and figure 11, and push until the pin clicks into place. The positioning must adhere
exactly to what is reported in Figure 11 to facilitate the activation of the air supply when the
bag is opened.
e) At this point, the pressure reducer is in stand-by status and the cylinder can be refilled with
breathing air. The air quality for respiratory protective devices must comply with EN 12021.
f) Refill the cylinder according to the instructions below, paying attention to the maximum
pressure value of 200 shown on the cylinder:
o Unscrew the protective cap of the refill connector incorporating the acoustic signal as
shown in figure 12.
o Connect the cylinder to the EN 144-2 outlet and hand-tighten as shown in Figure 13.
o Open the filling valve of the compressor very slowly and carefully so as not to damage
the internal holding unit.
o Charge the cylinder at an ambient temperature of approximately 20°C to its maximum
pressure (200 bar) as indicated on the compressor pressure gauge and check that this
matches the position of the pressure gauge needle within the green section.
Note: This operation may cause overheating which may result in incomplete recharging. It is
recommended to recharge at a rate of 27 bar/minute. o Depressurise the recharge hose and
remove it from the exhaust system connector.
o Depressurise the refuelling hose and remove it from the exhaust system connector.
g) Let the cylinder cool down to ambient temperature. Check the actual charge pressure, in fact, after
cooling down, the pressure may be lower than the one detected during refilling. If the pressure gauge
indicates a pressure lower than the one needed to complete the filling, repeat the cooling operation
and its control. Replace the protection cap on the acoustic signal as shown in figure 14. Check that
there are no visible traces of dirt.
h) After refilling the cylinder, the equipment must be correctly repositioned inside the containment
bag.To perform this operation, follow the steps described below:o Place the cylinder in the bag, making
sure that the pressure gauge is visible through the transparent screen located at the bottom of the
bag, as shown in figure 15 and figure 16.
o Lock the bottle with the Velcro straps to hold it in the position shown in the previous point.
o Replace the hose in its correct quick coupling position on the side of the pressure reducer by
simply pushing, as shown in figure 17 and check that it is correctly locked into the quick coupling by
pulling slightly.
o Gently fold the cover as shown in figures 18 to 21:
Place the lid with the screen facing upwards, fold the side edges and the top edge
o
inwards following the folds of the lid.
Fold the ends of the rectangle to get less volume in the bag.
o
o Place the folded lid inside the bag with the tube inserted between the bottle and the lid to avoid
problems during the closing and opening of the bag as shown in figure 22 and figure 23, at the end
the equipment should be as shown in figure 24.