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Personal Ambulatory Oxygen System
Provider Technical Manual
20771733 D 14
Annual Maintenance
Procedures
The following section lists procedures that are necessary to maintain
the eQuinox. Service should only be performed by a qualified
technician. To perform periodic maintenance, the only tools that
should be necessary are:
• #1 Phillips Screwdriver
• 3/8” or 10mm Deep Well Socket and Ratchet
WARNING:
Disconnect all power supplies going to the unit prior
to performing the following steps
Remove and Replace 9-Voly Battery and
Compressor intake Filter
Replace the 9-volt battery when the unit beeps three times at the end
of power-on self-test, when voltage is less than 7.0 Volts, or during
annual PM. To replace the 9-volt battery, follow these steps:
1. Remove the rear cover by loosening the two Phillips-head screws.
NOTE: The two captive screws will not remove completely from
the rear panel.
Figure 7
Figure 8
2. Place finger under recessed area and pull outward.
Figure 9
3. Once the cover is removed, replace the 9-Volt Battery by pushing
up slightly on the bottom of the battery and then pulling out.
Figure 10