Pipeline Pressure Gauges - Dräger Medical Fabius Tiro Technical & Service Manual

Replacement Procedure
19 Pipeline Pressure
Gauges
Dräger Medical AG & Co. KGaA
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Access to the pipeline pressure gauges requires removal of the
Bezel Assembly. Figure 25
the gauges. For clarity, other sub-assemblies are not shown in the illustration.
NOTE
If the Core Unit is wall mounted, refer to the
Procedure prior to performing the following step
1. Disconnect all pipeline hoses and set the System Power switch to 'ON'.
2. Close all cylinder valves except the O2 valve.
3. Set the oxygen flow to 5 l/min.
4. Open the other gas flow control valves to deplete the pressure from the
system.
5. Close the O2 cylinder valve and close the flow control valves. Press the
O2 Flush valve to deplete oxygen pressure from the system.
6. Set the System Power switch to 'OFF' and disconnect AC power from the
machine.
7. Detach the cylinder supply from the yoke.
8. Loosen the screws securing the bezel assembly (refer to the
Bezel Assembly instructions) and bring the assembly forward for access
to the pipeline pressure gauges.
9. Disconnect the tubing from the fitting on the gauge to be replaced.
10. Remove the retainer plate screws, and separate the retainer plate with
the gauges from the bezel.
11. Un-thread the straight fitting from the back of the gauge to be replaced.
12. Remove the gauge mounting nut, and remove the gauge from the
retainer plate.
13. Install the replacement gauge in the retainer plate - make sure it is ori-
ented properly when tightening the gauge mounting nut.
14. Reinstall the straight fitting in the back of the gauge.
15. Reinstall the gauge retainer plate in the bezel.
16. Reconnect the tubing that was previously removed.
17. Reinstall the flow meter bezel assembly in the machine (refer to the
Meter Bezel Assembly
18. Reconnect the pipeline and cylinder supplies and restore power to the
machine.
19. Perform the PMS procedure.
6020.002
shows the tubing and mounting arrangement for
Wall Mount Service Access
instructions).
Revision B Released
Fabius Tiro
Flow Meter
Flow Meter
Flow
193