5-26
Test procedures:
1. Turn off the pipeline gas supply and bleed the residual pressure through O2 flushing.
2. Pull out No.54 PU tube which connects the O2 supply inlet assembly to the expiratory
valve assembly. The end of the tube which connects the O2 supply inlet assembly is
not pulled out but the other end is.
3. Connect one PU tube (8X200) to the pulled-out tube end of the expiratory valve
assembly. Then connect this PU tube and the pulled-out end of No.54 PU tube to the
two connectors of 3140-08-00 Y piece respectively.
4. Connect the test pressure gauge to another connector of 3140-08-00 Y piece through
3106-04-06 and 3106-06-08 adapter connectors, as shown below.
5. Turn on the O2 pipeline supply.
6. Turn on the machine to enter Standby.
7. Turn off all flow regulators.
8. Turn off the pipeline gas supply (if the reading on the test pressure gauge begins to fall
dramatically and continuously after the gas supply is turned off, it indicates that one or
several leaks occur to the O2 supply inlet assembly, expiratory valve assembly, O2
flush button assembly, system switch assembly, and O2 flow regulator. Perform the
subsequent operations after the leaks are serviced. Failures can be located by using the
methods described in section
5.3.3Anesthetic Gas Delivery System
and
5.3.4Patient
Circuit
except O2 supply inlet assembly related failures).
9. Manually adjust the O2 flow regulator until O2 flow is approximately 1 L/min,
causing the reading on the test pressure gauge to fall gradually to 0.25 MPa (2.5bar).
10. Turn off O2 flow to cause the reading on the test pressure gauge not to fall. If the “O2
Supply Failure” alarm occurs 10 s later, it indicates that the pressure switch of the O2
supply inlet assembly is faulty. Troubleshoot this problem as described in the relevant
failure table.
Summary of Contents for WATO EX-55
Page 1: ...WATO EX 55 65 Anesthesia Machine Service Manual ...
Page 2: ......
Page 4: ...II FOR YOUR NOTES ...
Page 6: ...IV FOR YOUR NOTES ...
Page 12: ...6 FOR YOUR NOTES ...
Page 58: ...3 22 FOR YOUR NOTES ...
Page 242: ...6 54 6 4 1 Electrical Connections Electrical Circuit Diagram ...
Page 260: ...6 72 FOR YOUR NOTES ...
Page 261: ...7 1 7 Parts 7 1 Main Unit 7 1 1 Main Unit 7 1 1 1 Exploded View ...
Page 321: ......
Page 322: ...P N 0621 20 78654 1 1 ...