14. Change the exhalation membranes
2020-10-06
OI03H-1021 SR 200 Airline
20
14.1
The exhalation
membranes are mounted on
a fixed dowel on the inside of
the valve covers on each side
of the outer mask. The covers
should be changed whenever
the membranes are changed.
Snap the valve covers off the
valve seats.
14.2
Prise off the
membranes.
14.3
Press the new
membranes onto the dowels.
Carefully check that the
membranes are in contact
with the valve seats all round.
14.4
Press the valve covers
into place. A clicking sound
indicates that the cover has
snapped into place. Carry out
a negative fit check.
