Replacing The Exhalation Valve Diaphragm - DuPont Tychem TK Manuel D'utilisation

Replacing the exhalation valve
diaphragm
Location Channel
Retaining Screw
Hexagon Key
Figure 12
1. Using the Hexagon Key (Tool No. B00311) loosen the screw
from the center of the exhalation valve and remove the cap.
2. Carefully stretch the diaphragm over the center spigot to
remove from the exhalation valve body.
3. Check that there is no debris or contamination in the exhala-
tion valve body.
4. Carefully stretch a new diaphragm over the center spigot
making sure that it is correctly orientated and that the hole
in the diaphragm is located under the shoulder of the spigot.
(see Figure 13).
5. Replace the exhalation valve cap making sure that the loca-
tion channel on the cap is located over the location key on the
valve body (the lettering should be at the top).
6. Replace the center screw and hand tighten using the Hexa-
gon Key (Tool No. B00311).
16
Location Key
Valve
Body
Diaphragm
Valve Cap
Ensure that the diaphragm
is seated under the shoulder
of the centre spigot
and is correctly orientated.
Figure 13