Specifications

3-4
Cisco ONS 15454 Troubleshooting and Maintenance Guide
November 2001
Chapter 3 Maintenance
Air Filter Inspection and Replacement
Figure 3-2 Inserting or removing the fan-tray assembly
Step 5 Carefully slide the air filter out of the shelf assembly (see Figure 3-3). Be careful not to dislodge any
dust that may have collected on the filter.
Step 6 Visually inspect the white filter material for dirt and dust.
Step 7 If the air filter shows a heavy concentration of dirt and dust, replace it with a new filter:
a. Slide the filter into the bottom of the shelf assembly, making sure that the front of the filter is flush
with the front of the shelf assembly.
To be sure you are installing the air filter correctly, make sure the air flow indicators on the filter
point upwards.
Fan tray filter
Fan tray
assembly
Small engraved
direction arrow
34510