Datex-Ohmeda Anesthesia Delivery Unit S/5, Техническое справочное руководство

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Troubleshooting A-AUF
Document No. 8502853
A-47
TROUBLESHOOTING A-AUF
Guidelines for troubleshooting leakage in the A-WGU
Big leaks are normally easy to find since you can hear from them. Small leaks are more difficult to
trace and they are discovered during the Functional checks routine.
Use the guidelines below to find where leaks are located.
There are some tools that will help to find the leak
•
Leak finding spray or soap water
•
High pressure test adapter P/N: 8500002
•
Test device for measuring pressures.
•
Extra multiconnectors that can be plugged (see spare part list s for connectors and plugs)
Figure 46
Extra multi-connectors
Actions Comments
1 Check that the test equipment and
its connection do not leak.
Correct leak
2 Perform the high pressure leak test
and the WGU non-return valve tests
according to the Functional Check.
Remove Yoke cylinders if attached to
the A-WGU,
Note that the gas inlet assembly
must be folded up when non- return
valves are tested.
If the high pressure leak test pass, but not the non-
return valve leak test. Is the problem may be a leaking
non- return valve in the A-WGU.
3 If the high pressure test fails Check that all multiconnectors are correctly mounted
and have a good gasket.
4 Find out what gas is leaking. Use High pressure test adapter to test separate each
gas line. Use also the diagnostic pages.
If Air leaks
- Check that scavenging ejector is closed.
- Check for leak in Air Auxiliary outlets on the A-WGU.
If O
2
leak s
Check for leak in O
2
Auxiliary outlets on the A-WGU,