96-06434-00-01 revA
Service Manual, Inogen One G3HF
-64-
4. Using pliers, gently remove the O2 Sensor tubing from the manifold barb (Figure 11).
Figure 11: O2 Sensor Tubing Connection
4. With all tubing and cables disconnected, remove the product manifold.
Instructions for Replacing the Product Manifold:
1. Place the new product manifold in its place. Make sure the motherboard cables are
oriented in front of the manifold.
2. Reconnect the O2 Sensor tubing the manifold barb (Figure 11).
3. Reinstall the two screws on the column receptacle (Figure 10). Torque to 3 in-lbs.
4. Reinstall the three tubes into their respective quick connects, starting with the
accumulator tubing then the column tubes. Pull on the tubing to ensure the tubes have
been correctly inserted into the manifold quick connects and do not pull out (Figures 8
and 9).
5. Attach the Exhaust tube back onto the Tube Bracket and re-clip the Column B tube into
the Inlet Union Barb (Figure 7).
6. Reconnect the Product Manifold Harness, then the Feed Waste Harnesses to the
motherboard. Assure proper connection of the pins (Figures 5 and 6).
Instructions for Replacing the Housing:
1. To re-install the user interface panel, plug the LCD cable back into the motherboard
(Figure 4).
Note orientation of red wire.
Re-attach the cannula tubing to the cannula
connector.
2. Reconnect the UIP cable to the motherboard (Figure 3).
3. Test the function of each button and the LCD. If anything does not work, reseat the
cables in the connectors and check for debris in the connectors.
4. Re-install the four screws that connect the user interface panel to the chassis (Figures 1
and 2). Tighten screws to 5 in-lbs.
5. Place the device on its back side.
6. Seat the feet of the front housing into the corresponding grooves on the chassis (Figure
10) then push down and toward the device to secure the housing in the chassis.
