There are two columns (metal tubes) in the concentrator located
behind the particle filter. These two columns will be removed and
replaced when service is required. Ensure adequate time is allowed
to complete all steps without disruption is alloted when performing
this maintenance.
Lay the concentrator down on its side.
Press the two latch buttons on the sides of the device to
remove the cover from the bottom of the concentrator
in order to access the two columns.
Press the latch button with thumb or
finger and pull the column out of the
concentrator using the pull ring attached
to the bottom of the column cap.
Repeat steps 5-6 to remove the
other column.
Remove the column completely
from the concentrator.
Remove the upper and lower dust
caps from each column. There
should be a total of two dust caps
removed from each column. Make
sure there is no dust or debris
where the dust caps were located.
Insert the new column into the concen-
trator. Do not leave the column exposed
after the dust caps are removed; it should
be inserted into the concentrator
immediately to minimize
environmental exposure.
The spring loaded latch button should fully
return to the closed position when the
column is completely inserted.
Continues on back
Installation of the new columns (metal tubes):
Replace the lower cover and return the concentrator
to its upright position.
PMS 661 main color/651 swish
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2Unplug the concentrator from the electrical outlet.
Turn the concentrator off by pressing the power button
to shut down the device.
NOTE Column change instructions are only to be used when maintenance is
required and are not intended for practice purpose.
11 Repeat steps 9-10 to install the other column.
