Pneumatic Circuit System Problems Repair and Troubleshooting
5 - 50 046-001141-00 A5/A3™ Service Manual
5.3.4 Breathing System
The following table lists breathing system related failures.
Failure
description Possible cause Recommended action
Leak
The CO2 absorber canister is not installed
properly.
Re-install the CO2 absorber canister.
Remove the sodalime at the sealing
connection. Ensure the correct
installation of sadalime canister.
The sealing piece for the absorbent
canister assembly is damaged, including
the two sealing cushions (049-000142-00
and 049-000145-00), which are in direct
contact with the absorbent canister and
the two sealing rings (082-001504-00) on
the bypass upper cover which are in
contact with the circuit bottom housing.
Replace the sealing component of the
CO2 absorber canister assembly. It is
required to replace the seal once a year.
The seal for the bag arm is damaged.
Replace the seal for the bag arm. It is
required to replace the seal once a year.
The water collection cup gets loose.
Check and tighten the water collection
cup.
The seal for the water collection cup
assembly is damaged.
Replace the seal for the water collection
cup assembly. It is required to replace the
seal once a year.
The seal for the circuit adapter assembly is
damaged.
Replace the seal, which is required to be
replaced once a year.
The bellows housing or bellows is not
installed properly.
Re-install the bellows housing or bellows.
Ensure their correct installation.
The bellows sealing cushion falls off or is
damaged.
Replace the bellows sealing cushion,
which is required to be replaced once a
year.
The valve cover of the breathing valve
assembly is not installed properly.
Re-install the valve cover and ensure its
correct installation.
The seal for the valve cover of the
breathing valve assembly is damaged.
Replace the seal.
The O2 sensor is not installed properly.
Re-install the O2 sensor and ensure its
correct installation.
The seal for the O2 sensor or the seal for
the O2 sensor plug is damaged.
Replace the seal.
The breathing tube connecting the
patient is damaged.
Replace the breathing tube.
The bellows is damaged.
Replace the bellows, which is required to
be replaced once a year.
The sealing connection of other parts of
the breathing system is damaged.
Repair or replace the sealing connection
as per the procedures described in
‘‘Adjust the Regulator of the Pipeline Gas
Supply Inlet Assembly’’ on page 5-34
The condensate valve of the canister
assembly is not installed properly or the
seal inside is damaged.
Re-install the condensate valve or replace
the damaged seal inside.
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