What do pumps in a hydraulic system primarily do?

In a hydraulic system, pumps are essential components that primarily function to supply a flow of fluid. They take hydraulic fluid from the reservoir and move it through the system, creating the required flow that enables the operation of hydraulic actuators, such as cylinders and motors. This flow facilitates the transfer of energy within the system, allowing the hydraulic equipment to perform work, such as lifting or moving heavy loads.

While creating system pressure is an outcome of the fluid movement, the primary role of the pump is to ensure that there is a continuous supply of hydraulic fluid available. This supply allows the system to maintain the necessary pressure for operation. Although it might seem that storing fluid, regulating temperature, or directly creating pressure are vital functions, these actions are not the main purpose of pumps. The focus is distinctly on providing an adequate and steady flow to support the hydraulic components and their functioning.