Figure 66 - Rear Panel Screw Locations (8); Figure 67 - Secondary Gas Test Point Locations - Spacelabs BleaseSirius Technical Manual

Secondary Regulator Adjustment
1. Retrieve the documentation supplied with the fi eld replacement hypoxic
block assembly and verify the O2 and N2O step down values.
2. Ensure the ON/OFF switch is in the "OFF" position.
3. Ensure all fl ow control valves are closed.
4. Connect a supply to the O2/N2O/AIR pipeline inlets.
5. Remove the rear cover. (see rear cover removal for instructions)
6. Remove the (8) screws (Figure 66), using a 2.5mm Allen key, then
remove the large rear panel.

Figure 66 - Rear Panel Screw Locations (8)

7. Locate the secondary regulator test points and gas locations (Figure 67).
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Detailed Repair Procedures
Figure 67 - Secondary Gas Test
Point Locations