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8 Cisco 7000 and Cisco 7507 Chassis Replacement Instructions
Prerequisites
Lifting the Chassis Safely
The chassis weighs 76 pounds when empty (no processor modules or power supplies installed) and
145 pounds when fully configured with two power supplies and all interface slots populated.
Whenever you lift the chassis or any heavy object, follow these guidelines:
Warning Two people are required to lift the chassis. Grasp the chassis underneath the lower edge
and lift with both hands. To prevent injury, keep your back straight and lift with your legs, not your
back. To prevent damage to the chassis and components, never attempt to lift the chassis with the
handles on the power supplies or on the interface processors, or by the plastic panels on the front of
the chassis. These handles were not designed to support the weight of the chassis. (For translations
of this safety warning, refer to the section “Chassis Lifting Warning” on page 39.)
Figure 6 Lifting Safely
Caution To prevent damage, never attempt to lift thechassis with the handles on the power supplies
or the interface processors. These handles are not designed to support the weight of the chassis.
Note The following warning is for units equipped with DC-input power supplies.
Warning Before performing any of the following procedures, ensure that power is removed from
the DC circuit. To ensure that all power is OFF, locate the circuit breaker on the panel board that
services the DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of
the circuit breaker in the OFF position. (For translations of this safety warning, refer to the section
“DC Power Disconnection Warning” on page 40.)
• Remove all power supplies before lifting the chassis. Each supply weighs 20 pounds.
• Always disconnect all external cables before lifting or moving the chassis.
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