M-921 Replacement Visor Gasket
To remove gasket (Fig. 8), with the visor frame in the up (open) position, grasp the black gasket and
slowly pull straight out in small sections. To install a new gasket, align end with the edge of the groove in
the top of the visor. Press the gasket firmly into the groove in small sections. Both gasket ribs should be
fully inserted into the groove.
NOTE: When properly installed, the visor gasket should make contact with the headgear shell. If it does
not, remove and re-install.
Fig. 8
M-957 Forehead Comfort Pad/Sweat Pad
To replace comfort pad, unsnap pad and remove from headband. Wrap new comfort pad around the
headband in the area that comes into contact with your forehead and secure by closing the three
snaps (Fig. 9).
Fig. 9
M-953 Ratchet
To remove the ratchet, locate ratchet attachment points on suspension (Fig. 10a). Remove by pressing down
on each of the four circular sections to release the ratchet at the attachment points as shown (Fig. 10b). To
install ratchet, first turn the knob counterclockwise as far as it will go. Hold ratchet so that the attachment
holes are curved in the up position (Fig. 10c). Snap attachment points on each side onto the suspension.
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