Table of Contents
Advertisement
Medical Gas Supply System
6.15 Replace Intermediate Pressure
Gauge.
Intermediate pressure gauge kit number, see table 13,
chapter 7.
NOTE - Intermediate 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
intermediate pressure gauge. If necessary, 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.
6.15.1 If the optional service mode is selected during
maintenance complete steps in 6.1.
6.15.2 Complete the steps in 6.3 to perform this
maintenance with one bank running. If total isolation is
preferred, follow steps in 6.2.
6.15.3 Close all cylinders on the side of manifold where
intermediate pressure guage will be repaired.
6.15.4 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
4109992485.00
stage regulator to isolate
st
Stage Regulator.
st
6.15.5 Vent pressure in the 1
isolated from last step by pressing the service relief
valve as shown in below figure.
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 51 - Intermediate Pressure Gauge Replacement.
Intermediate
Pressure
Guage
Fix Nut
Intermediate
Service Relief Valve
6.15.6 Disconnect the intermediate pressure gauge, fix
nut, service relief valve and connector nut, referring to
figure 51.
6.15.7 Replace the new gauge and new connector,
fasten the intermediate service relief valve.
6.15.8 Recover the intermediate and line isolation
valves to normal open position.
6.15.9 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.
6.15.10 Verify the manifold operation.
46
stage regulator that is
st
Connector
Nut
Advertisement
Table of Contents
