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Medical Gas Supply System
6.9.5
Vent pressure in the bank and 1
that is isolated in the last step by pressing the service
relief valve on the 1
stage regulator.
st
Service Relief
Valve
NOTE - If the cylinder pressure gauge is not rapidly
dropping in pressure, stop draining the system and
check all cylinders are correctly isolated.
Figure 45 - Header Non-Return Valve Replacement.
6.9.6
Once all the gas has been vented, disconnect the
tailpipe connection to the non-return valve that needs
replacing.
6.9.7
Remove the non-return valve and washer.
CAUTION! Ensure the replacement unit is the
correct gas type.
NOTE - Non-return valve kit is supplied complete with
new washer.
6.9.8
Fit the new washer and connect the new non-
return valve.
6.9.9
Follow section 6.18 or 6.19 depending on
whether the maintenance was performed with total or 1
bank isolation to bring the manifold back online.
stage regulator
st
Tail Pipe
Connection
Non-return
Valve
Copper Washer
6.10 Replace Solenoid Valve.
Solenoid valve kit number, see table 13, chapter 7.
NOTE - Solenoid replacement can be performed with the
service valve closed (Item 11, figure 1), while running on
both banks of the manifold.
6.10.1 If the optional service mode is selected during
maintenance, complete steps in 6.1.
6.10.2 Close the service valve (Item 11, figure 1).
6.10.3 Enter the service mode in the controller.
CAUTION! When exhausting anaesthetic and
oxygen manifolds ensure that the manifold room is well
ventilated and no potential ignition sources are present.
6.10.4 Disconnect the cables for the solenoid valve.
6.10.5 Slowly loosen connector of the 'IN' port position
to vent the gas inside the solenoid valve.
Port 'A'
Port 'B'
6.10.6 Remove the 3 fittings connectors and , 2 screws
and 1 muffler as shown in figure 46 from the old solenoid
valve.
Figure 46 - Solenoid Valve Replacement.
Disconnection
Connector Points
41
Port 'IN'
Disconnection
Screw Points
Disconnection
Muffler Points
4109992485.00
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