M-444 Inner Shrouds (M-400 Series); M-116 And M-316 Airflow Deflectors; M-154 Replacement Forehead Seal (M-100 Series) - 3M Versaflo M Serie Manual De Instrucciones

Fig. 13d
M-445, M-446, M-447 & M-448 outer Shrouds (M-400 Series)
To remove the outer shroud:
– Pull the large plastic tab off the air inlet of the headgear and release the suspension ratchet from
the hole in the outer shroud (Fig. 14a).
– Grasp the black shroud gasket and slowly pull straight out in small sections, working your way
around the shroud (Fig. 14b).
note: Do not bend gasket over and 'peel' off as this may damage the gasket ribs. Do not
start in the middle of the gasket. Pull out in small sections starting at one end.
To install the outer shroud:
– Insert air inlet of headgear through the hole in the large plastic tab on the outer shroud. Push tab
fully onto the air inlet such that it is flush to the headgear shell. Push the ends of the plastic tab
underneath shell lip. Insert head suspension ratchet through hole in shroud (Fig. 14a).
– Grasp the black shroud gasket and pull to expose the edge of the gasket where it meets the elastic
(Fig. 14c). Align the edge of the gasket with the edge of the groove in the headgear. Press the
gasket firmly into the groove in small sections, working your way around the shroud. Start at one
end and work around in one direction. When you reach the end of the groove in the headgear on the
other side from where you started, the gasket on the shroud may extend slightly beyond the edge of
the groove – this is acceptable – but it is critical that both gasket ribs are completely inserted into
the groove.
Fig. 14a
Fig. 14c
Fig. 14b
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M-444 Inner Shrouds (M-400 Series)

To remove inner shroud, unzip inner shroud from outer shroud and remove. To install inner shroud,
align the zipper parts on the inner and outer shroud and connect. Ensure inner shroud is completely
zipped into the outer shroud (Fig. 15).
Fig. 15

M-116 and M-316 airflow deflectors

The M-116 (M-100) and M-316 (M-300 and M-400) airflow deflectors are not intended to be removed
on a regular basis. They are designed to stay in the headgear until broken or damaged. To replace
broken parts, move the visor to the up (open) position. With the headgear upside down, remove
damaged or broken airflow deflector. Use a tool if necessary. Install deflector by snapping into place.

M-154 replacement Forehead Seal (M-100 Series)

– To remove forehead seal, lift visor frame into the up (open) position and unbutton the seal from
its attachment points on the suspension. Grasp the black gasket and slowly and gently pull
straight out in small sections, starting at one end and working around the gasket. Do not start in
the middle of the gasket as this may cause the gasket to rip or tear.
– To install forehead seal, grasp the black gasket and align with headgear according to Fig. 16a.
note: the "shiny" side of the seal should be facing towards you (i.e. outwards) as you install the
seal. Press the gasket firmly into the groove in small sections. Both gasket ribs should be fully
inserted into the groove. Grasp fabric tab with button and fold over to inside of suspension. Attach
forehead seal button to head suspension (Fig. 16b).
Fig. 16a
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