Which factor is crucial for the efficiency of a hydraulic system?

Maintaining proper fluid levels and cleanliness is essential for the efficiency of a hydraulic system because hydraulic fluids play a critical role in transmitting power, lubricating components, and cooling the system. When fluid levels are low, there is insufficient fluid to create the necessary pressure, leading to reduced system performance and potential damage to components. Additionally, contaminants in the hydraulic fluid can cause wear and tear, leading to increased maintenance needs and decreased system reliability. Clean and properly filled fluid ensures optimal operation, reduces the risk of breakdowns, and contributes to the longevity of the system. Thus, ensuring fluid levels and cleanliness is foundational to maintaining an efficient hydraulic system.