Lenovo ThinkSystem DE Series Installation Instructions Manual page 10

2. Install the rails.
If instructions were included with your rack-mounting hardware, refer to them for detailed
information on how to install the rails.

For square hole cabinets, you must first install the provided cage nuts to
secure the front and rear of the shelf with screws.
3. Install the shelf.

An empty shelf weighs approximately 132 lb (60 kg). A mechanized lift or four
people using lift handles are required to safely move an empty shelf.
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