Cleaning And Replacing The Air Filter - Cisco 7000 Series Replacement Instructions Manual

Cleaning and Replacing the Air Filter

Cisco 7000 Air Filter and Chassis Blower Replacement Instructions 9
Step 2:
Two guide tabs at the top edges of the panel fit into two slots in the top edges
of the chassis opening. Tilt the top of the panel back (away from you) about
30 degrees from vertical and slide the two guide tabs into the chassis slots (see
Figure 6a).
Step 3:
Check the top of the panel and make sure it is lined up with the top of the
chassis opening. Failure to align the panel at this point can result in equipment
damage when performing the next step.
Step 4:
Push the panel upward to push the tabs into the slots (see Figure 6a) and pivot
the bottom of the panel toward the chassis until the panel frame meets the
chassis (see Figure 6b). Maintain a steady upward pressure to keep the guide
tabs in the chassis slots.
Step 5:
When the panel is flush against the front of the chassis, push the panel upward
until the bottom of the panel is level with the bottom of the chassis opening
(see Figure 6c).
Step 6:
While holding the panel in place, place one palm against the top front center
of the panel to brace it, and place the other against the lip near the bottom
edge of the frame (see Figure 6d).
Step 7:
Push the panel upward and back into the chassis opening until the tabs on the
front sides of the panel are flush against the front of the chassis (see Figure 6d).
You will have to use significant force to compress the EMI shielding enough
to fit into the opening. If the panel resists, pull it slightly downward and make
sure that the panel is lined up with the top and sides of the opening in the
chassis.
Step 8:
When the tabs on the front sides of the panel are flush against the sides of the
chassis, tighten the two captive screws in the bottom edge of the frame.
Step 9:
To replace the bottom front panel, place the ball studs on the back of the
panel over the holes in the front lip of the chassis and push the panel onto the
chassis until the ball studs snap into place.
This completes the chassis front panel removal and replacement procedures.
The air filter removes dust from the air drawn in by the blower. The edges of the air
filter fit into the lower frame of the top front chassis panel (see Figure 3). Remove and
vacuum the air filter at least once every two weeks (more often in unusually dusty
environments). You can also wash the filter, but ensure that it is completely dry before
replacing it in the chassis. Have spares on hand in case the filter tears or becomes worn,
or if you have to remove and wash it. A dirty filter could restrict the flow of cooling air
into the chassis and could cause an overtemperature condition. You need only remove
the bottom front chassis panel to access the filter.
Caution:
Never place a wet filter in the chassis; the moisture drawn into the chassis
can damage the equipment.