5-25
4. Turn off AIR pipeline supply and bleed the residual pressure by turning on the AIR
flow regulator.
5. Insert the pulled-out tube properly.
6. Pull out No.41 PU tube which connects the AIR supply inlet assembly to the AIR
pipeline pressure gauge. The end of the tube which connects the AIR supply inlet
assembly is not pulled out but the other end is.
7. Connect the pulled-out tube end to the test pressure gauge, as shown below.
8. Turn on the AIR pipeline supply and record the reading on the test pressure gauge. If
the difference between this reading and the reading on the AIR pipeline pressure gauge
is more than 0.1 MPa (1bar), it indicates that the AIR pipeline pressure gauge is
damaged. Handle this problem as described in the troubleshooting table.
9. Insert the pulled-out tube properly.
5.3.2.2 Test the Pressure Switch
Use the following tools to test if the pressure switch of the O2 supply inlet assembly and
that on the integrated pneumatic circuit of the expiratory valve assembly are normal:
1 MPa (1bar) test pressure gauge (before the test, make sure that the 1 MPa (1bar) test
pressure gauge is in good condition) (quantity:1)
3106-04-06 adapter connector (quantity:1)
3106-06-08 adapter connector (quantity:1)
3140-08-00 Y piece (quantity:1)
PU tube (8X200) (quantity:2)
PU tube (6X200) (quantity:1)
PU tube (4X200) (quantity:1)
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