Replace The Door Latch - Lenovo ThinkSystem Rear Door Heat eXchanger V2 User Manual

Step 9. Align the hooks on the inner hose access panel with the slots on the inner side of the heat
exchanger, and lower the panel to secure it.
Figure 65. Installing the inner hose access panel
Step 10. Align the slots on the outer hose access panel with the hooks on the outer side of the heat
exchanger, and lower the panel to attach it to the heat exchanger. Optionally, secure the panel with
a M4 screw.
Figure 66. Installing the outer hose access panel

Replace the door latch

See this topic to learn how to replace the door latch of Rear Door Heat eXchanger.
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ThinkSystem Rear Door Heat eXchanger V2 User Guide