Replacing The Exhalation Valve Disc - Berner SCOTT Sari Instrucciones Para El Uso

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Unscrew the screws (crosshead Phillips), loosen the visor frames, and remove the
visor (fi g. A).
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Place a new visor in the faceblank groove (see the marking "up/down" on the visor).
Align the check marks of the visor and faceblank with each other (fi g. B).
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Press the upper frame into place (fi g. C).
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Bend the mask at the connector to give space for the lower frame under the connector
support piece (fi g. D). Tighten both screws.
•
Carry out the leak-tightness test (point 5.1).

5.3 Replacing the exhalation valve disc

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Pull out the connector lid (fi g. E).
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Separate the disc (grey) from the valve body (pinch on the edge of the disc) (fi g. F).
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Replace the disc (pass the tail through the central hole to the inside of the mask) (fi g.
G).
5.4 Replacing the inhalation valve discs
•
Remove the connector lid.
•
Remove the rubber valve seat by pulling it from the tip (fi g. H).
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Replace the disc (fi g. J).
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Put the valve seat back to the bottom of the valve body. Do not press too tight (the disc
comes immobilised) because the disc must be free to move.
•
The valve discs of the inner mask (fi g. K) are replaced similarly. Make sure that the
rubber edge of the inner mask comes in the valve seat groove.
5.5 Replacing the speech diaphragm
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Pull the head harness to the front of the mask (fi g. L).
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Fold the chin cup inside out, towards yourself (fi g. M).
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Remove the speech diaphragm (fi g. N).
•
To make assembly easier, moisten the O-ring with water. Position the tip of the speech
diaphragm into the notch of the connector (fi g. O–P) to prevent any leakage. Press the
speech diaphragm into place (fi g. Q).
•
Fold the chin cup to its proper position (fi g. R).
5.6 Cleaning
•
Remove the fi lter, valves, spectacle frame and speech diaphragm. Also eventual
breathing hose.
•
Clean the facepiece and components with a damp cloth or sponge, using lukewarm
water and mild detergent (neutral, pH 6-8) (e.g. washing-up liquid). A brush can be
used for stubborn dirt (be careful not to scratch the visor).
•
Do not use solvents (e.g. alcohol, acetone, turpentine), hot water or bleaching agents
(perborate, percarbonate)
5.7 Disinfection
After cleaning, disinfect the mask (especially the inside/face seal) with a disinfection solution
(e.g. Scott Trigene), rinse and let it dry. Finally, reassemble the mask.