Safety Instructions; Safety: Rack Mounting Of Systems - Dell PowerEdge 850 Guide D'installation

Safety Instructions

Use the following safety guidelines to ensure your own personal safety and to help protect your
system and working environment from potential damage. For complete safety information,
see the Product Information Guide.

SAFETY: Rack Mounting of Systems

Observe the following precautions for rack stability and safety.
Systems are considered to be components in a rack. Thus, "component" refers to any system as well
as to various peripherals or supporting hardware.
CAUTION:
Before installing systems in a rack, install front and side stabilizers on stand-alone racks
or the front stabilizer on racks joined to other racks. Failure to install stabilizers accordingly before
installing systems in a rack could cause the rack to tip over, potentially resulting in bodily injury under
certain circumstances. Therefore, always install the stabilizer(s) before installing components in the
rack.
CAUTION:
After installing components in a rack, never pull more than one component out of the rack
on its slide assemblies at one time. The weight of more than one extended component could cause the
rack to tip over and injure someone.
NOTE:
Your system is safety-certified as a free-standing unit and as a component for use in a rack
cabinet using the customer rack kit when both the rack cabinet and rack kit were designed for your
system. The installation of your system and rack kit in any other rack cabinet has not been approved
by any safety agencies. It is your responsibility to have the final combination of system and rack kit in a
cabinet evaluated for suitability by a certified safety agency. The manufacturer disclaims all warranties
and liability in connection with such combinations.
• System rack kits are intended to be installed in an approved rack by trained service
technicians. If you install the kit in any other rack, be sure that the rack meets the
specifications.
• Before working on the rack, make sure that the stabilizers are secured to the rack, and that
the full weight of the rack rests on the floor. Install front and side stabilizers on a single rack
or front stabilizers for joined multiple racks before working on the rack.
• Always load the rack from the bottom up, and load the heaviest item in the rack first.
• Make sure that the rack is level and stable before extending a component from the rack.
• Do not overload the AC power supply branch circuit that provides power to the rack.
The total rack load should not exceed 80 percent of the branch circuit rating.
• Ensure that proper airflow is provided to components in the rack.
• Do not step on or stand on any system/component when servicing other systems/components
in a rack.
Rack Installation Guide
5