What is a common indicator of a clogged filter in a pneumatic system?

A common indicator of a clogged filter in a pneumatic system is a pressure drop across the filter. As a filter becomes clogged with contaminants, it restricts airflow, leading to a reduction in pressure beyond the filter. This pressure drop can affect the overall performance of the pneumatic system, making it less efficient and potentially leading to decreased actuator function. Monitoring the pressure differential across the filter is a critical part of maintaining pneumatic systems, as it provides valuable insight into the filter's condition and when it needs replacement to ensure optimal system operation.