What could happen if contaminants are not removed from hydraulic fluid?

The correct choice highlights a critical aspect of hydraulic systems, which is the importance of maintaining fluid cleanliness. When contaminants such as dirt, debris, or water are present in hydraulic fluid, they can negatively affect the system's performance.

These contaminants can cause increased wear and tear on components such as pumps, valves, and actuators. As a result, the components may fail earlier than expected due to this accelerated wear. Additionally, contaminants can lead to issues like clogged filters, which can restrict fluid flow and create further strain on the system. This ultimately compromises the reliability and longevity of the hydraulic system.

Understanding the impact of contaminants emphasizes the necessity for routine maintenance practices, such as filtering and regular fluid checks, to ensure optimal operation and to extend the lifespan of hydraulic system components.