Maintaining The Mx2020 Air Filter - Juniper MX2020 Hardware Manual

For optimum cooling, verify the condition of the air vents. Dust can clog air vents, reducing cooling system
efficiency.
Action
On a regular basis, check the vents and clean them as necessary.
SEE ALSO
Clearance Requirements for Airflow and Hardware Maintenance for the MX2020 Router | 133
MX2020 Cooling System Description | 45

Maintaining the MX2020 Air Filter

Purpose
For optimum cooling, verify the condition of the air filter.
Action
Regularly inspect the air filter. A dirty air filter restricts airflow in the unit, producing a negative effect
on the ventilation of the chassis. The filter degrades over time. You must replace the filter every 6
months.
CAUTION:
the fans are very powerful, they could pull small bits of wire or other materials
into the router through the unfiltered air intake. This could damage the router
components.
The shelf life of polyurethane filter varies from two years to five years depending on the storage
conditions. Store in a cool, dry, and dark environment. Wrap the media in plastic and store in an
environment with relative humidity between 40%- 80% and temperature between 40°F (4° C) to 90°F
(32° C). Note that if the material flakes, or becomes brittle when rubbed or deformed, it is no longer
usable.
SEE ALSO
Tools and Parts Required to Maintain the MX2020 Hardware Components | 225
MX2020 Cooling System Description | 45
Replacing the MX2020 Air Filters
Always keep the air filter in place while the router is operating. Because
466