11
5.4 Replacing the inhalation valve discs
Remove the rubber valve seat (green) by pushing it with a finger from the inside of the mask
(Fig. G).
Replace the disc (pass the tail through the central hole to the inside of the mask) (Fig. H).
Put the valve seat back to the bottom of the valve body (Fig. J). Do not press too tight (the disc
comes immobilised) because the disc must be free to move.
The valve discs (green) of the inner mask 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
Remove the inner mask from around the speech diaphragm (Fig. K).
Press the clip to remove the speech diaphragm (Fig. L
–
M). To make assembly easier, moisten
the O-ring with water. Press the speech diaphragm into place.
Insert inner mask into place.
5.6 Replacing the harness buckle
Press the buckle downwards (Fig. N).
Hold the buckle and twist the rubber endpiece through the gap to the other end of the buckle
(Fig. O
–
P) (the buckle rotates 180 ).
Remove the buckle (Fig. Q).
Assemble in reverse order.
5.7 Replacing the inner mask
Remove first the inhalation valve seat (green) by pushing it with a finger from the inside of the
mask (Fig. G).
If equipped with drinking device: remove the mouth piece.
Gently pry open the hole on the fastening ring of the inner mask, using a screwdriver (via the
inh. valve body opening) until the fastening ring comes off (Fig. R).
Remove the inner mask (Fig. S).
When assembling, insert the notch of the fastening ring into the tip of the exh. valve (Fig. T) and
press the inner mask into place.
5.8 Cleaning
Mask
Remove
the filter, valves/discs, drinking device, spectacle frame, speech diaphragm and inner
mask.
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).
Drinking device
(Fig. U, V, X)
Remove the mouth piece and wash it separately.
Put water in a bottle. Connect the bottle to the drinking device. Squeeze the bottle and let water
pass through the drinking device.
Replace the mouth piece when the mask is given to another user.
5.9 Disinfection
After cleaning, disinfect the inside/faceseal with a disinfection solution (e.g. Scott Trigene), rinse and
allow to dry. Finally, reassemble the mask.
Содержание M98 Small
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