Lenovo ThinkSystem Micro DataCenter User Manual page 22

Figure 9. Adjusting rack cabinet feet
2. Repeat the same procedure on the other three feet until the cabinet is levelled with balance. To make
sure the cabinet is balanced, slightly push the cabinet and make sure it does not shake or tilt.
Note: The leveling feet provide a stable base if the floor is slightly uneven, but they cannot compensate
for a badly sloped surface.
3. Connect the grounding cable.
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ThinkSystem Micro DataCenter 12U Rack Cabinet User Guide