Datex-Ohmeda 7100, Техническое справочное руководство

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6 Maintenance
1006-0836-000 02/03 6-3
6.2 Free breathing valve maintenance
Figure 6-1 • Free breathing valve
Refer to Section 7.3 to access the Pneumatic Vent Engine.
1. Unscrew the valve seat (
A
) from the side of the interface manifold.
2. Inspect the flapper (
B
) and valve seat for nicks, debris and cleanliness.
To replace the flapper valve
3. If necessary, clean the new flapper valve with alcohol.
4. Pull the tail (
C
) of the new free breathing valve flapper through the center
of the valve seat until it locks in place.
5. Trim the tail flush with outside surface of the valve seat (refer to the
removed flapper).
6. Replace the O-ring (
D
). Lubricate with a thin film of Krytox.
7. Hand screw the assembly into the interface manifold.
8. Reassemble the system.
9. Perform the Preoperative Checkout Procedure
(refer to the respective User’s Reference manual).
A A
B
C D