Important Safety Information

Observe the safety precautions in the following subsections when installing your system in the rack.

WARNING: You must strictly follow the procedures in this document to protect yourself as well as others who may be involved. Your system may be very large and heavy, and proper preparation and planning are important to prevent injury to yourself and to others. This becomes increasingly important when systems are installed high up in the rack.

Rack Stabilizer Feet

WARNING: Installing systems in a rack without the front and side stabilizer feet installed could cause the rack to tip over, potentially resulting in bodily injury under certain circumstances. Therefore, always install the stabilizer feet before installing components in the rack.

WARNING: After installing systems in a rack, never pull more than one system out of the rack on its slide assemblies at one time. The weight of more than one extended system could cause the rack to tip over and cause injury.

The stabilizer feet help prevent the rack from tipping over when a system or other component is pulled out of the rack with the slide assemblies fully extended.

Installation Tasks

Installing a rack cabinet involves performing the following tasks:

1Removing and replacing the rack doors

2Removing and replacing the side panels

3Reversing the front door and badge (optional)

4Securing the leveling feet

5Installing the stabilizer feet

6Adjusting the rack posts (optional)

7Routing cables through the rack

8Coupling two racks (optional)

Installation Guide

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Dell 21DXJ, 4820 manual Installation Tasks