Personal Ambulatory Oxygen System
Provider Technical Manual
20771733 D 35
4. Once the Wire Harnesses have been disconnected, the next step is
loosen the two sets of Jumper Wires that attach from the Battery
Bridge Board to the Power Manager Board. To do this, use a small
Flat-Head screwdriver, loosen the four fastening screws pictured
below and gently pull the four wires free of the connector slots.
Figure 61
5. Once the Wire Harnesses and Jumper Wires have been
disconnected, the next step is to remove the 5 Phillips Head
Screws that attach the Power Manager Board to the Front Cover.
Figure 62
6. The Power Manager Board can now be removed by gently lifting
the Power Manager Board upward away from the unit. To replace
the Power Manager Board, repeat steps 1-5 in reverse order
making sure connections are properly seated and that Bump Stop
has been reinstalled.
7. To remove the Control Board, the first step is to disconnect the
soft tubing that is connected to the Oxygen Outlet/HEPA Filter
housing by gently pulling the tubing free.
Figure 63
8. After removing the soft tubing, the next step is to disconnect the
Battery Bridge Board to Control Board Wire Harness by gently
pulling the connector from the Control Board.
Figure 64
Three
Screws
Two
Screws
(not
visible
due to
tubing)
BUMP STOP