5.5 HP StorageWorks X9720 Network Storage System Administrator Guide (AW549-96026, March 2011)

Rack warnings and precautions
Ensure that precautions have been taken to provide for rack stability and safety. It is important to
follow these precautions providing for rack stability and safety, and to protect both personnel and
property. Follow all cautions and warnings included in the installation instructions.
WARNING!
To reduce the risk of personal injury or damage to the equipment:
• Observe local occupational safety requirements and guidelines for heavy equipment handling.
• Obtain adequate assistance to lift and stabilize the product during installation or removal.
• Extend the leveling jacks to the floor.
• Rest the full weight of the rack on the leveling jacks.
• Attach stabilizing feet to the rack if it is a single-rack installation.
• Ensure the racks are coupled in multiple-rack installations.
• Fully extend the bottom stabilizers on the equipment. Ensure that the equipment is properly sup-
ported/braced when installing options and boards.
• Be careful when sliding rack components with slide rails into the rack. The slide rails could pinch
your fingertips.
• Ensure that the rack is adequately stabilized before extending a rack component with slide rails
outside the rack. Extend only one component at a time. A rack could become unstable if more
than one component is extended for any reason.
WARNING!
Verify that the AC power supply branch circuit that provides power to the rack is not overloaded.
Overloading AC power to the rack power supply circuit increases the risk of personal injury, fire, or
damage to the equipment. The total rack load should not exceed 80 percent of the branch circuit
rating. Consult the electrical authority having jurisdiction over your facility wiring and installation
requirements.
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