How to Set Hydraulic Pump Pressure on 100 Hitachi Excavator？

The applicability of using a hydraulic pump for water transfer is being questioned. There is a need for clarification on whether it is designed and efficient for such a task, considering the fluid dynamics and mechanical constraints involved.

The question asks why hydraulic oil doesn’t leak or spill out when hydraulic valves are changed in a machine. In hydraulic systems, valves control the flow of hydraulic fluid, and one might intuitively think that replacing or changing these valves would cause hydraulic fluid to escape. However, in well-designed systems, measures are in place to contain the hydraulic oil even when components are being serviced or replaced. This question would be of interest to individuals who work with or maintain hydraulic systems, such as mechanics, engineers, or technicians, as understanding this aspect can be crucial for both the efficiency and safety of hydraulic operations.

The question explores whether a piston-type pump has the capability to regulate or control fluid flow. It delves into the functional aspects of piston pumps, particularly focusing on their flow control mechanisms and efficiency.

Aims to explore the function and significance of the indicating signal lights that are often present on electrically operated hydraulic valves. These lights serve as visual indicators to inform operators or technicians about the operational status of the valve, such as whether it is open or closed, or whether it is receiving an electrical signal to change its position. Understanding the role of these signal lights can be crucial for monitoring system performance, troubleshooting issues, and ensuring safe operation, especially in complex hydraulic systems where real-time information is vital.

Axial piston pumps often use an odd number of pistons to ensure continuous, smooth operation. This design helps in balancing the load and minimizing vibrations, leading to more efficient and stable performance of the pump.

In a hydraulic system, moving a hydraulic motor/piston by hand when the pump is off is feasible, but may require significant effort. The ease of movement depends on the system’s design and the presence of any locking or check valves which could hinder manual movement.