Gas Inlet Assembly (Including O2 Supply Pressure Switch) - Dräger Medical Fabius Tiro Technical & Service Manual

Replacement Procedure
10 Gas Inlet Assembly
(including O2 supply
pressure switch)
Dräger Medical AG & Co. KGaA
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The gas inlet assembly is attached to the side of the gas box assembly as
shown in Figure 15. This assembly includes regulators, check valves, filters,
and the O2 supply pressure alarm switch. Refer to the parts list for details on
internal parts locations for replacement.
1. Invert unit by performing steps given in the
sembly Section.
2. Disconnect the wire harness from the O2 supply pressure alarm switch.
NOTE
Make a note of the connections and their destinations in the following step
for later reassembly.
3. Disconnect the following tubing:
– P1 (N2O pipeline pressure gauge)
– P2 (Air pipeline pressure gauge)
– P3 (O2 pipeline pressure gauge)
– P4 (N2O cylinder regulator output check valve)
– P5 (N2O flow control valve)
– P6 (Air flow control valve)
– P7 (O2 flow control valve)
– P8 (O2 T-fitting)
4. Remove the screws securing the gas inlet assembly to the side panel and
carefully lift the gas inlet assembly out.
5. Install the replacement assembly on the side panel in the same manner
as the original, ensure there is no pinching or kinking of the attached con-
nections.
6. Reconnect the tubing at P1 thru P8.
7. Reconnect the wire harness to the O2 supply pressure alarm switch.
8. Invert unit into its upright position by performing steps given in the
Module Inversion Reassembly
9. Perform the PMS procedure.
6020.002
Core Module Inversion Disas-
Section.
Revision B Released
Fabius Tiro
Core
171