Negative Pressure; Positive Pressure - Dräger Narkomed 2B Service Manual

PMC PROCEDURE (continued)
6.7C.4.3
6.7C.4.4
6.7C.4.5
6.7C.4.6
6.7C.5

Negative Pressure:

6.7C.5.1
6.7C.5.2
6.7C.5.3
6.7C.5.4
6.7C.6

Positive Pressure:

6.7C.6.1
6.7C.6.2
6.7C.6.3
6.7C.6.4
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Remove the valve from the housing by turning it counter-
clockwise. A needle-nose pliers may be used to turn the valve, but
use care not to damage the valve's fragile disk.
Brush any accumulated lint or dust off the valve with a soft brush.
The valve may be further cleaned with a low flow of clean air or
oxygen.
Reinstall the valve and plastic washer into the housing.
Reinstall the valve housing onto the scavenger body, making sure
that the O-ring is properly seated.
Connect a 22mm breathing hose between the absorber's
inspiratory and expiratory valves. Set the Man/Auto valve to the
BAG position. Turn the APL valve fully counter-clockwise. Occlude
the bag mount connector.
Verify that the suction waste gas disposal system is active.
Close all flow control valves on the machine. Adjust the scavenger
needle valve to allow typical suction through the scavenger.
Install a scavenger adapter (P/N 4108114) with a hose barb
between the 19mm hose terminal of the scavenger and the
scavenger hose. Connect a test monitor to the hose barb adapter
and observe the pressure reading on the test gauge. The gauge
shall indicate a pressure of <-1.0 cmH
Close the scavenger needle valve by turning it fully clockwise.
Push the O Flush button to inflate the scavenger reservoir bag.
2
Open the oxygen flow control valve to 10 l/min.
Observe the pressure reading on the test gauge. The gauge shall
indicate a pressure of <10.0 cmH
Remove the test equipment. Readjust the scavenger needle valve
to allow typical suction through the scavenger.
6-12
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O.
2
O.
2
NM2B
Rev. Y