Fig. 12.
Replacing The Removable Visor (Rigid Visor Models Only)
1. Carefully peel the removable visor from the
Velcro discs.
2. If necessary clean the hard visor before fi tting
a new removable visor.
3. Remove the protective fi lm from the new
removable visor.
4. Locate the centre discs at the top and bottom
of the removable visor on to the centre discs
on the hard visor.
5. Wrap the removable visor around each side of
the hard visor, lining up all the fi xing discs and
pressing together (Fig. 12.).
Replacing Exhalation Valve Diaphragm
1. Using a torque driver with a ‘T8’ Torx bit, loosen and remove the screw from the centre of the exhalation
valve, then remove the cap.
2. Carefully slide the diaphragm up the central spigot and remove from the exhalation valve body.
3. Check that there is no dust, debris or contamination of any kind in the exhalation valve body.
4. Carefully slide a new diaphragm down the central spigot until it rests evenly on the valve body. Ensure
the diaphragm is correctly orientated with the ridged side uppermost (Fig. 14.).
Valve cap
Diaphragm
Valve body
No4 x 1¼ ‘Torx’
C/sk screw
Locating key
Locating
channel
Fig. 13.
16
