Which part of the hydraulic system is primarily involved in lifting the elevator?

The part of the hydraulic system that is primarily involved in lifting the elevator is the plunger. In hydraulic systems, the plunger is a crucial component that converts the hydraulic fluid pressure generated by the pump into mechanical force. When hydraulic fluid is pumped into the cylinder, it pushes the plunger upward, which in turn raises the elevator. The plunger’s movement is directly responsible for lifting the load, making it the key element in the vertical motion of the elevator.

While other components such as the cylinder, pump, and valves play significant roles in the hydraulic system, they serve different functions. The cylinder provides the space for the plunger to operate and contains the hydraulic fluid, but it does not actively lift the elevator by itself. The pump generates the hydraulic pressure needed to move the fluid but does not lift directly. Valves control the flow of hydraulic fluid within the system, ensuring that the pressure is directed to the correct component, but again, they do not participate directly in elevating the load.