The rack’s front castors are fixed, so you must steer using the rear casters. You will be able to maneuver the rack safely by pushing it from behind.
Caution - Never attempt to move the rack by pushing on the side panels. Pushing on the side panels can make the rack tip over, which can damage the equipment and cause serious personal injury or death.
Figure 2-2 Push the Rack From Behind
Caution - Always avoid tipping or rocking the rack, especially if you have installed equipment into it, as the rack can fall over.