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    Maintaining the M40e Air Filter


    Verify the condition of the air filter.


    • Check the air filter regularly for dust and debris.
    • Replace the air filter every 6 months. The air filter is hot-removable and hot-insertable, as described in M40e Field-Replaceable Units (FRUs). Take note of the following caution, however.

      Caution: Do not operate the router for more than a few minutes when the air filter has been removed. The fans and impellers are powerful enough to draw in foreign material, such as bits of wire, through the unfiltered air intake, which could damage router components.

    Published: 2010-10-28