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Medical Gas Supply System
6.14 Replace Gauge for Cylinder
Pressure.
Cylinder pressure gauge kit number, see table 13,
chapter 7.
NOTE - Cylinder pressure gauge replacement can be
performed with the associated bank isolated, while
running on the opposite bank of the manifold.
Following procedure describes process to service
cylinder pressure gauge. If necessary, cylinder pressure
gauge service can be performed while manifold is in
service. However, this should only be done by qualified
technicians experienced in servicing medical equipment.
6.14.1 If the optional service mode is selected during
maintenance, complete steps in 6.1.
6.14.2 Complete the steps in 6.3 to perform this
maintenance with one bank running. If total isolation is
preferred, follow steps in 6.2.
6.14.3 Close all cylinders on the side of manifold where
the cylinder pressure gauge will be replaced.
6.14.4 Rotate the intermediate isolation valve on the
same side downstream the 1
the 1
stage regulator. Refer to figure 40.
st
Figure 40 - Isolating the Left 1
Intermediate
Isolation Valve
stage regulator to isolate
st
Stage Regulator.
st
6.14.5 Vent pressure in the 1
isolated from last step by pressing the service relief
valve as shown in below figure.
Service Relief
Valve
6.14.6 Loosen the old pressure gauge from the
connector referring to figure 50, and remove the old
washer.
6.14.7 Balance the new copper washer on the end of
the gauge's connector and tighten the new gauge with
the connector.
Figure 50 - Cylinder Pressure Gauge Replacement.
Guage
Connector
Cylinder
Pressure
Gauge
6.14.8 Follow section 6.17 or 6.18 depending on
whether the maintenance was performed with total or 1
bank isolation to bring the manifold back online.
6.14.9 Verify the manifold operation.
45
stage regulator that is
st
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