Hydraulic Power Pack is a unit consisting of a hydraulic pump, hydraulic motor, and control valves used to generate and control the flow of hydraulic fluid. Hydraulic fluid is then used to drive hydraulic actuators, such as hydraulic cylinders and hydraulic motors. Here are some functions of the hydraulic power pack:
Produces the hydraulic fluid flow required to drive the hydraulic actuator.
Controls the flow of hydraulic fluid to produce the desired motion in the hydraulic actuator.
Protects the hydraulic system from damage.