North FRONTIER Series, Инструкция пользователя

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9.1.4 Fill cylinder to the maximum rated pressure (FULL). Wait at least 30 minutes to allow cylinder
to cool to room temperature, then add extra air to return the cylinder gauge to full. Note: the
pressure will drop as cylinder temperature drops.
9.2 FACEPIECE DISASSEMBLY AND REASSEMBLY
Tools required: #2 Phillips screwdriver, 2 pin spanner
9.2.1 TO DISASSEMBLE:
9.2.1.1 Remove the two screws from the lens clamps (Figure 22). The nuts may fall out of the
lower clamp. Carefully pry the clamps apart and remove from the lens.
9.2.1.2 Remove lens from the facepiece seal (Figure 23).
9.2.1.3 Remove inner oral/nasal cup. Lift up slightly and pull away from the exhalation assembly
(Figure 24).
9.2.1.4 Rotate the exhalation valve assembly clockwise until the slots align with the grove in the lens
(Figure 25). Push the exhalation valve assembly outward.
9.2.1.5 Remove the CDV adapter using the two pin spanner tool by placing the spanner tool on the
retaining nut and turning counter clockwise (Figure 26). Remove nut and CDV adapter, and
gently remove the CDV seal from the lens (Figure 27).
9.2.2 TO REASSEMBLE:
9.2.2.1 Gently install the CDV seal into lens, ensuring the seal is flat against the lens on both sides
(Figure 28). The seal needs to be orientated so that one detent points to the oral/nasal cup.
Install outer CDV connector through the seal and attach retainer nut from inside the mask
(Figure 29).
9.2.2.2 Tighten retainer nut using spanner tool until making contact with the seal (Figure 30). Turn
1/4 to 1/2 turn more using the spanner tool. Check the outside connector is tight by trying to
rotate connector. If loose, tighten retainer nut slightly and recheck.
9.2.2.3 Install exhalation valve assembly: There are three notches, one notch is
rectangular and the other two are curved. Place the rectangular notch in the upper left-hand
corner of the lens. Rotate the exhalation assembly from the inside of the visor counter
clockwise until the assembly locks in-place (Figure 31).
9.2.2.4 Install oral/nasal cup: Install the oral/nasal cup over the first groove of the
exhalation valve assembly (Figure 32). Start at the bottom and gently seat the oral/nasal
cup. There are two notches in the oral/nasal cup, one at the top and one at the bottom.
Rotate slightly to align the notches to seat the oral/nasal cup properly.
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Do not rotate exhalation valve assembly by the outside cover.
CAUTION