Cisco Cisco Packet Data Interworking Function (PDIF) Guía De Instalación
Replaceable Components
▀ Air Filters
▄ ASR 5500 Installation Guide
148
Rear Air Filter
Step 1
Remove the bottom cover panel from the chassis. Firmly grasp the side edges of the panel and pull up and away to
unsnap the panel. Put the panel safely aside. See figure below.
unsnap the panel. Put the panel safely aside. See figure below.
Step 2
Loosen the screws securing the lower fan tray access cover. Remove the cover and set it safely aside.
Step 3
Because of the narrow gap between the fan unit and air filter, use a flat blade screw driver to gently force the air filter
back toward the mid plane. Allow the filter to spring downward and forward, away from the retaining lip at the front of
the card cage.
back toward the mid plane. Allow the filter to spring downward and forward, away from the retaining lip at the front of
the card cage.
Step 4
Verify that the arrows located on the sides of the replacement air filter point upwards (metal grid facing up). These
arrows indicate the direction of the airflow into the chassis through the filter. The spring indicates the rear of the filter
and goes toward the midplane.
arrows indicate the direction of the airflow into the chassis through the filter. The spring indicates the rear of the filter
and goes toward the midplane.
Caution:
Installing the air filter incorrectly may cause over-temperature conditions within the system.
Step 5
Slide the replacement air filter into the gap above the fan tray assembly towards the midplane. Tilt the filter slightly
upward to catch the slot in back of the card cage.
upward to catch the slot in back of the card cage.
Step 6
Use a flat blade screwdriver to push the filter into the rear slot and flush with the bottom of the card cage. Allow the
filter to spring forward into the lip under the front rail of the card cage. The plastic tabs should be hanging down.
filter to spring forward into the lip under the front rail of the card cage. The plastic tabs should be hanging down.
Step 7
Reinstall the fan tray access cover.
Step 8
Reinstall the chassis cover panel by snapping it in place.
Step 9
Discard the old air filter.