Lenovo ThinkCentre 3512 Manual page 82

3. Remove the two screws that secure the system stand, and then lift the system stand up and remove
it from the computer.
Figure 8. Removing the system stand
4. To reinstall the system stand, align the two screw holes with the corresponding holes in the chassis, and
then install the two screws to secure the system stand to the computer.
Figure 9. Reinstalling the system stand
5. Reinstall the system stand hinge cover. See "Removing and reinstalling the system stand hinge cover"
on page 73.
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ThinkCentre Hardware Maintenance Manual