What action should be taken if the restriction indicator on a MC-7 air compressor is tripped?

When the restriction indicator on a MC-7 air compressor is tripped, it typically signifies that there is a blockage or high resistance in the air intake system, which could be caused by a dirty air filter element. Cleaning or replacing the air filter element is crucial because a clogged filter restricts airflow, leading to inefficiency and potential damage to the compressor due to the strain of trying to draw in air through a blocked filter.

By addressing this issue, you restore the flow of air into the compressor, thereby ensuring that the system operates correctly and efficiently. This action also prevents further complications that might arise from prolonged operation under restricted conditions.

While resetting the restriction indicator may seem necessary, it does not address the underlying problem of airflow restriction. Ensuring the unloader valve is open and adjusting the air discharge service valves are also measures that do not directly resolve the airflow issue at the intake, making the action of cleaning the air filter element the most effective response to a tripped indicator.