Personal Ambulatory Oxygen System
Provider Technical Manual
20771733 D 25
Servicing the eQuinox
Note:
Prior to performing the following procedures, ESD
protection must be ensured. Do not touch exposed
circuits during maintenance without ESD protection.
Service should only be performed by a qualified technician. To perform
the following procedures, the only tools that should be necessary are:
• #1 Phillips Screwdriver
• Wire-cutting pliers
• Small cable ties
• ESD Mat or approved ESD system
I. Removing/Replacing the Back Cover
1. Disconnect power supplies and remove Battery Pack before
removing the unit cover.
2. Place the unit horizontally on the front cover.
3. Perform Steps 1-3 of the “Preventative Maintenance” Section.
4. After removing the compressor intake filter, remove the clear
rubber fitting that the filter would slide into by pulling upward.
NOTE: When replacing this rubber fitting, ensure that the rubber
fitting slides over the intake tube and fits properly.
Figure 23
5. Using a Phillips #1 screwdriver, remove a total of 6 screws (M3x12
Phillips Head SEM Screw, P/N 6974-312-SEQ) from the back of the
unit.
Figure 24
6. Gently lift the back cover upwards from the bottom of the unit,
sliding the top of the back cover over the top of the unit as
pictured below.
Figure 25
7. Disconnect the 9-Volt Battery Cable, the 2 service port connectors
and the speaker connector.
Figure 26
8. The back cover is now completely disconnected from the unit. To
replace, repeat steps 1-5 in reverse order.
Qty 6 Phillips
Head Screws
9-Volt Battery
Connector
Speaker
Connector
Service Port
Connectors