Air Filtration Maintenance - Cardinal Health AirLife nCPAP Hardware Service Manual

11.2

Air Filtration Maintenance

This air filter bowl and element should be visually inspected at every set-up and replaced per
the maintenance schedule or if water or contaminant is detected. This standard 5 micron
element (P/N P411182) filters out particulate matter that may be present in the air lines to
protect the electronic sensors and proportional valves inside the driver.
1. Visually inspect the inlet air filter and filter bowl. If the filter is dirty or wet, it must be
replaced. A white Delrin tool with an Allen wrench has been supplied to assist in the
filter bowl removal process (part number P411197).
2. Insert the pronged end of the Filter Bowl Removal Tool onto the filter bowl and gently
turn the tool counterclockwise, using the Allen wrench as a handle, until the filter bowl
loosens from the housing.
3. Gently unscrew and remove the filter bowl.
4. Using your fingers, gently unscrew the filter retaining nut, and remove and discard the
old filter.
5. Place the new filter onto the shaft, and install the filter-retaining nut finger tight.
6. Place the bowl over the filter, and using the Filter Bowl Removal Tool, tighten the bowl
onto the housing.
Visually inspect air filter and filter bowl.
Unscrew and remove old filter.
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AirLife
Use Delrin tool to remove filter bowl.
Place new filter on shaft.
Page 33 of 81
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nCPAP Driver Service Manual