3M Speedglas 9100 MP Directives D'utilisation page 28

3M Speedglas
™ ™
To remove the ratchet, locate the ratchet attachment points on suspension (Fig. 12a). Remove by pressing
down on each of the four circular sections to release the ratchet at the attachment points as shown (Fig. 12b).
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. 12c). Snap attachment points on each side onto the suspension.
Fig. 12a
3M Versaflo Head Suspension, M-350
™ ™
To replace head suspension:
– With the headgear upside down, remove the faceseal elastic straps from the head suspension. Once you
have disconnected the faceseal, release the head suspension from the headgear shell by pushing upwards
on the plastic hangers of the web straps. The hangers are shown in Fig. 13a.
– Remove the remaining center web strap by pushing upwards on the plastic hangers.
– To install new suspension, attach the single web strap that is not attached to the headband into the headgear
shell by inserting the hangers into the slots. The center strap attaches in the slots next to the inner shield's
pivots (Fig. 13b).
– Align the head suspension over the shell with the ratchet towards the air inlet and the comfort pad end of
the suspension towards the visor. Attach the plastic hangers of the suspension into the remaining slots to
complete installation of the suspension. All hangers must be attached. Ensure hangers are fully seated and
flush to shell slot (Fig. 13b).
Ratchet, 06-0400-54/M-953
Fig. 12b
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Fig. 12c