Accessing The Bays - Cisco 7000 Hardware Installation And Maintenance

Installing Power Supplies

Accessing the Bays

This section describes how to proceed if your system is installed in an equipment rack, and if you
do not have clear access to both power supply bays. If the chassis is not in a rack, or if you already
have clear access to the power supply bays, proceed to the following section, "Inserting Power
Supplies."
Warning
cause the rack or the chassis to tip. Before performing this procedure, ensure that you have sufficient
help (assistants) to support the rack and the chassis to prevent them from tipping forward.
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Step 5
Warning
panels can break away and allow the chassis to drop.
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3-120 Cisco 700 Hardware Installation and Mainteneance
This procedure shifts the chassis' center of gravity toward the front of the rack and may
Ensure that you have at least 3 to 4 feet of working space at the rear of the chassis.
Check the power supply bays and ensure that access is not blocked. If it is not, proceed to
the following section, "Inserting Power Supplies."
If cables from other equipment fall in front of the power supply bay, carefully gather the
cables (using care not to strain them) and use cable ties to anchor them away from the power
supply bays. If no other equipment blocks access to the bay, proceed to the following
section, "Inserting Power Supplies."
If access to the power supply bays is partially blocked by a power strip or other permanent
rack fixture, you will need to detach the chassis from the rack and carefully slide it forward
until you can maneuver each power supply into a bay. Make sure that at least one other
person is available to support the front of the chassis as you push it out the front of the rack
and, if necessary, to continue to support it while you insert the power supplies.
Use a 3/16-inch flat-blade screwdriver to loosen the four screws that secure the left and
right ears to the front mounting strips on the equipment rack.
Never attempt to lift or support the front of the chassis with the plastic front panels. The
Position at least one person in front of the rack to support the front underside of the chassis
and prevent it from falling as it is pushed forward out of the rack. Grasp the chassis along
the metal undersides behind the plastic front panels. If possible, position two people in front
of the rack, one person to support each side of the chassis.
From the rear of the equipment rack, slowly push the chassis forward out of the rack until
there is enough clearance for the power supplies to be inserted into the bay.
If the chassis is installed near the bottom of the rack, allow the bottom front edge of the
chassis to rest on the floor while you install the power supplies. If the chassis is too high in
the rack for this to be practical, proceed to the following section, "Inserting Power
Supplies," and perform the steps as quickly as possible.
When the power supplies are installed, push the chassis back into the rack until the ears
meet the mounting strip on both sides of the equipment rack.
Slide the chassis back into the rack until the ears meet the mounting strips on both sides of
the rack.