What is the primary function of a hydraulic filter?

The primary function of a hydraulic filter is to remove contaminants from hydraulic fluids. This is essential for maintaining the integrity and efficiency of hydraulic systems. Hydraulic fluids can easily become contaminated with particles, dirt, and other debris during operation, which can lead to wear, damage, and malfunction of components such as pumps, valves, and actuators. By trapping these contaminants, the hydraulic filter ensures that clean fluid circulates throughout the system, thereby enhancing performance and extending the lifespan of hydraulic equipment. Keeping the hydraulic fluid clean is crucial not only for operational reliability but also for safety, as contaminants can lead to sudden system failures. Thus, the correct choice highlights the filter's vital role in maintaining the overall health of hydraulic systems.