AirSep MN138-1 H - Manual (Page 31)

25
MN138-1 Rev H
02/14
5. Gently position the entire concentrator on its back and separate the base from the
center section. (Power cord is still attached to base.)
6. From the underside of base, secure caster nut (located just above the wheel of
caster) using a 1/2-inch combination wrench.
7. While securing the nut, remove the top nut of caster using a 9/16-inch
combination wrench.
Caster Installation
To install a caster, follow the removal steps in reverse order.
1. Larger washer should be installed onto caster before inserting into underside of
base.
4.18 Roller Base Replacement
Roller b ase removal and Installation
To replace the base on the VisionAire concentrator, please follow the steps below.
1. Set the unit’s I /0 switch to the “0” position and unplug the power cord.
2. Remove both front and back panels.
3. Follow Power Cord Removal procedure outlined under section 4.13.1.
4. Remove compressor cover from the compressor enclosure to access front screws
securing center section to base.
5. Using a Phillips-head screwdriver, remove the screws in the front and back of unit
securing the base of unit to the center section.
6. Gently position the entire concentrator on its back and separate the base from the center
section.
7. Follow Caster Replacement procedure outlined under section 4.17 to remove casters
and install onto new base.
8. Install center section onto new base making sure the power cord location on the base is
located at the back of the unit. Secure base to center section with screws using a
Phillips-head screwdriver.
9. Follow Power Cord Installation procedure outlined under section 4.13.2. (Note: location
of strain relief on power cord is already determined.)
10. Using a Phillips-head screwdriver, reinstall compressor cover to compressor enclosure.
4.19 Air Outlet Option (if equipped)
The air outlet option enables the VisionAire unit to serve as a source of compressed air for
patients who require a medication treatment.
The air outlet valve and adaptor located externally on the unit’s center section allows for an
easy connection of tubing to be used for this application.
Checking/Setting the Air Outlet Pressure Regulator
To check/set the air outlet pressure regulator, please follow the steps below:
1. Set the unit’s I /0 switch to the “ I ” position and set flowmeter ball to 5lpm.
2. Locate air outlet port on the center section of concentrator. With pressure gauge attached
to air outlet fitting (p/n F0725-1), insert fitting into air outlet port. Fitting will be locked
in place when properly installed.
3. Verify pressure reading on gauge is 13-15psi (90–103 kPa). Remove and reinstall outlet
fitting into outlet port, verify second pressure reading is the same.
4. If air outlet regulator requires adjustment, turn clockwise to increase pressure. If
adjustment is needed, verify two consecutive pressure readings are within specification.
5. Remove outlet fitting from outlet port.