M-150 Head Suspension (M-100 & M-200 Series); M-350 Head Suspension (M-300 & M-400 Series) - 3M Versaflo M Series User Instructions

Fig. 10a
M-150 Head Suspension (M-100 & M-200 Series)
To replace head suspension:
- Detach the faceseal and forehead seal button from the suspension headband. See "M-935, M-936,
& M-937 Faceseals & M-154 Forehead Seal" in this section for additional information.
- Release the suspension from the headgear by pulling the height adjustment slot off the peg at each
of the four attachment points. Fig. 11 points to one of the attachment slots. There are 2 in the rear
and 2 in the front.
- Install new suspension by snapping each of the four height adjustment slots onto the four pegs on the
headgear shell. NOTE: See "Donning and Fitting" section of these User Instructions for information on
adjusting the suspension for a comfortable fit (Fig. 11).
- Attach faceseal and forehead seal button to suspension.
- Adjust suspension for fit and comfort according to the "Donning & Fitting" section of these User
Instructions.
M-350 Head suspension (M-300 & M-400 Series)
NOTE for M-300 Series users: You must first detach the faceseal from the suspension headband. See
"M-935, M-936, & M-937 Faceseals" in this section for additional information.
To replace head suspension:
- With the headgear upside down, 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. 12.
- 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 3M™ Pivots.
- 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.
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Fig. 10b
13
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Fig. 11
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Fig. 10c