Cisco AS5800 Specifications Page 203

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Cisco AS5800 Operations, Administration, Maintenance, and Provisioning Guide
DOC-7810814=
Chapter 5 Maintenance
Replacement Procedures
Replacing the Blower Assembly
The Cisco AS5800 is equipped with a blower assembly, which is designed to monitor system internal
operating temperatures and maintain acceptable cooling parameters.
This section explains how to remove and replace the blower assembly in the dial-shelf chassis.
Tools and Parts Required
You need the following tools and parts to remove and replace the blower assembly. If you need
additional equipment, contact a service representative for ordering information.
New blower assembly (DS58-FAN=)
1/4-in. flat-blade screwdriver
ESD-preventive wrist strap
Antistatic mat or packaging
Removing the Blower Assembly
Caution The system shuts down cards approximately 2.0 minutes after the system temperature
threshold has been reached. Although normal blower assembly replacement is estimated
not to exceed 30 sec., if you expect the replacement process to exceed 1.0 minutes, we
recommend shutting down the system prior to the removal and replacement process.
Caution The blower assembly weighs 27.5 lb (12.5 kg). Use both hands when removing or replacing
the blower assembly.
To remove the blower assembly, complete the following steps:
Step 1 Attach an ESD-preventive wrist strap between you and an unpainted chassis surface.
Step 2 Loosen the two captive screws on the blower assembly front panel. (See Figure 5-17.)
Step 3 Grasp the blower assembly handle with one hand and pull the blower assembly straight toward you,
about halfway out of the slot.
Step 4 Place your other hand under the blower assembly as it extends from the dial-shelf chassis to support the
blower and prevent it from falling.
Step 5 Slowly pull the blower assembly all the way out of the slot and place it on an antistatic mat or in
packaging to return it to the factory.
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