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Routine Maintenance Procedures on the M120 Router



For optimum router performance, perform preventive maintenance procedures regularly.


  • Inspect the installation site for moisture, loose wires or cables, and excessive dust. Make sure that airflow is unobstructed around the router and into the air intake vents.

  • Check the status-reporting devices on the craft interface—System alarms and LEDs.

  • Inspect the air filter at the bottom front of the router. Replace it every 6 months for optimum cooling system performance. Do not run the router for more than a few minutes without the air filter in place. For maintenance instructions, see Maintaining the M120 Air Filter.