18 4-WAY VALVE
Part No 1176122
61
Invacare® Solo2™ Portable Oxygen Concentrator
18 4-Way Valve
18.1 Replacing the Compressor
•
Required tools: #2 screwdriver, Torx® T15 screwdriver, 3/32” hex
head driver, long handle needle nose pliers
1.
Disassemble the Solo2. Refer to Accessing the Internal Components.
2.
Remove the P.C. Board.
3.
Remove the Sieve Bed Unit.
4.
Using a 3/32" Hex head wrench, while holding the vibration mounts (on
top of the compressor box) from inside the compressor box and
loosen the screw.
5.
Remove the 4 screws holding the top and bottom of the compressor
box loose using a Torx®T15.
6.
Cut the Tie-wrap off the tube in the lower shroud that goes from the
compressor to the 4-way valve (Detail "A").
7.
Cut the Tie-wraps that secure the tubes from the 4-way valve to the
compressor and separate the valve from the compressor (Detail "A").
8.
Remove and replace the existing 4-way valve.
CAUTION
Before handling the P.C. Board, ensure you are properly grounded to prevent static discharge and damage to the components of the P.C.
Board. A static strap MUST be worn and properly grounded using an alligator clip. Electrical conduit or a water pipe can bue used if a
ground is unavailable. Care should be taken to ensure that the alligator clip contacts bare metal surface.
!
Ensure all fittings on the 4-way valve have tie-wraps on each
tube and that the wires have a small Ferrite Bead on them.
DETAIL “A”
DETAIL “B”
4-way Valve
Muffler
Compressor
Relief Valve
Ferrite
Bead
Vacuum
Connect to Bottom Sieve Bed
Connect to Middle
Sieve Bed
Pressure Output
