MSA AUER 3S-PS Mode D'emploi page 21

lens ring,
assembly
connector cover
screw
inhalation valve disc
inhalation valve seat
O-ring
Adapter,
plug connector
O-ring
valve cap
Fig. 1
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lens
exhalation valve disc
valve spring
valve cover
speaking diaphragm
buckle assembly
for head harness
buckle assembly
and D-ring
threaded socket
slide ring
valve socket
positioning pin
valve seat
valve disc
nose cup
retainer ring
head harness
Fig. 2
21