96-06434-00-01 revA
Service Manual, Inogen One G3HF
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SP-523 Inogen One G3HF Chassis Replacement
Parts Required:
1. SP-559, Housing, Chassis G3HF
Tools Required:
1. T10 Torx Driver
2. Small Flathead Screwdriver
3. Pliers
4. Scissors
5. 1/8” Hex Driver
Notes:
1. When removing screws from the device carefully set in a bin or secure area as these
screws will used to secure the replacement parts.
2. Many of the screws using on the Inogen One G3 have pre-applied loctite on the threads.
These loctite screws can be re-used up to four times before replacement screws are
required (If exceeded four uses please contact Inogen for a screw replacement kit).
3. The connectors for the LCD and User Interface Panel are delicate and should be handled
carefully. They must be inserted into the connector straight and be clean of all debris or
contamination in order to ensure proper LCD and User Interface Panel Operation.
4. The barbs on the accumulator cap are delicate and can easily be broken during removal or
installation of the tubing.
Instructions on Replacing the Chassis:
1. See “SP-501 and SP-502 Inogen One G3 Front and Rear Housing Replacement” for
instructions on removing the housing.
2. Locate and remove the two lower grommets that hold the receptacle tubing in place
(Figure 1).