Dell PowerEdge R905 - Manual (Page 9)

Dell™ Rack Installation Guide
7
Before You Begin
Before you begin installing your system in the rack, carefully read “Safety
Instructions”, found earlier in this guide, as well as the safety instructions
found in your
Product Information Guide for additional information.
CAUTION:
When installing multiple systems in a rack, complete all of the
procedures for the current system before attempting to install the next system.
CAUTION:
Rack cabinets can be extremely heavy and move easily on the casters.
Use extreme caution while moving the rack cabinet. Retract the leveling feet
when relocating the rack cabinet. Avoid long or steep inclines or ramps where
loss of cabinet control may occur. Extend the leveling feet for support and to
prevent the cabinet from rolling.
Important Safety Information
Observe the safety precautions in the following subsections when installing
your system in the rack.
CAUTION:
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
CAUTION:
Before installing systems in a rack, install the front and side
stabilizers on stand-alone (single) 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 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. See the documentation provided with the rack cabinet
for instructions on installing and anchoring the stabilizer feet.