Currently, most construction machinery uses mechatronics. The normal operation of the hydraulic system is the main indicator of its good technical conditions. The certified clean hydraulic oil ensures the reliable operation of the hydraulic system. Proper maintenance is the basis for the reliable operation of hydraulic systems.

Only by maintaining the hydraulic system, the giants of construction machinery can move freely. Hydraulic drive technology permeates all modern engineering disciplines. Compared with mechanical and electrical drives, hydraulic drives have the following unique advantages:

(1) Hydraulic actuators generate more power than similar electrical equipment.

(2) For the same output, the hydraulic transmission device is small in size, light in weight and compact in structure.

(3) The quality of hydraulic transmission is stable, the mechanical efficiency is high, and the low-speed load characteristics are good.

However, due to friction and leakage losses, hydraulic drive systems have significant energy losses. The cleanliness of the oil is very strict and must be replaced regularly. Changes in oil temperature will affect operating speed and noise control. Therefore, the hydraulic system of construction machinery has special environmental adaptability, reliable sealing, high operational reliability, strong real-time deformation, good maneuverability, system shutdown, and various modifications are required. Therefore, the relevant regulations must be observed when using the hydraulic system.

1. From the hydraulic system, select hydraulic oil suitable for pressure, lubrication, cooling and sealing actions. Improper selection of hydraulic oil is one of the main reasons for premature failure and durability of hydraulic systems. Each model also systematically introduces the electronic control system and troubleshooting and troubleshooting methods. It is impossible to mix different grades of hydraulic oil to prevent chemical reactions and changes in the properties of the hydraulic oil. Do not use dark brown creamy liquid. If the equipment has been used for lubricating oil, pay special attention to the cleanliness of the equipment and the reliable oil change amount when replacing other types of lubricating oil. Use automatic oil detection to clean and replace equipment.

2. Existing construction machinery hydraulic system, active maintenance and regular maintenance work, equipment dedicated hydraulic system hidden alarm function, system detection and maintenance, complex maintenance, regular inspection and intelligent equipment monitoring results may be the main monitoring parameters. Preventive maintenance can save you a lot of work and extend the reliability and service life of your equipment. Regular maintenance ensures that the hydraulic system is functioning properly and the equipment is in good condition.

That's it for understanding the maintenance of hydraulic system of small mini excavator construction machinery, I hope it will be helpful to you.