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Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
OL-11497-03
Chapter 6 Maintaining the Router
Removing and Replacing the Blower Module
Step 2 Visually check the condition of the air filters to determine whether to clean them
or install new replacements.
• Dirty—You can vacuum or replace the filters.
Caution Do not try to vacuum the air filter while it is installed in the chassis. You must
remove the air filter completely before you clean it to prevent contaminants from
being drawn into the router.
• Worn or torn—If the filters appear worn or torn, dispose of them in a
responsible manner and install replacement air filters (ACS-GSR6-FLTR=).
Step 3 Open the air filter door and install the new or cleaned air filters.
Note An arrow located on the edge of each air filter frame that indicates the
direction of air flow. Always install the air filter with the arrow pointing
in toward the RP and line card cage.
Removing and Replacing the Blower ModuleThe illustrations in this procedure represent both the original and newer enhanced
capacity blower modules for the Cisco 12006 and Cisco 12406 series routers;
blowers that shipped with original systems, and enhanced capacity blowers that
ship with current systems. If you are replacing an:
• Original blower module (GSR6-BLOWER=)—Use an original blower
module or an enhanced capacity blower module as a replacement.
• Enhanced capacity blower module (12000/6-BLOWER=)—Use an enhanced
capacity blower module as a replacement.
Note Compared to the original blower modules that shipped with Cisco 12006
and Cisco 12406 series routers, airflow capacity for new enhanced blower
modules is increased by nearly 40 percent to provide additional cooling
to the chassis. The new fans operate at a higher speed to provide improved
airflow, so you may notice increased sound generated from the new
blower module.