In a hydraulic system, what is a primary cause of aeration aside from leaks?

In a hydraulic system, aeration occurs when air becomes entrained in the hydraulic fluid. One significant cause of aeration, aside from leaks, is a low fluid level. When the fluid level is low, pumps can draw in air along with the fluid, which introduces bubbles into the system. This can disrupt the hydraulic pressure and lead to inefficient operation or potential damage to components.

Maintaining an appropriate fluid level is crucial for the proper functioning of hydraulic systems. It helps ensure that the suction side of the pump remains fully submerged, preventing air from being drawn in and reducing the likelihood of aeration-related issues.