What aspects of the hydraulic cylinder maintenance of the excavator need to be done

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The hydraulic system should be stable and reliable. Excavator modification requires experienced repairmen to complete the repair work through due process, and through the repairman's cleaning, there is no dirt inside. The excavator repair shop started with manual excavators, which have been invented for more than 130 years. During this period, it has experienced a gradual development process from steam-driven bucket rotary excavators to electric-driven and internal combustion engine-driven rotary excavators, and fully automatic hydraulic excavators that apply mechatronics technology. The first hydraulic excavator in Hefei Excavator Modification was successfully invented by the French Porquelin Factory. Because of the application of hydraulic technology, ground excavators with hydraulic backhoes on tractors appeared in the 1940s. The working principle of the hydraulic system is to rely on hydraulic oil as a power transmission medium. The hydraulic oil is pressurized by the main pump and then transported to various operating equipment to work through the conversion of the control valve, which plays a key role in the energy transmission of the whole machine.

What aspects of the hydraulic cylinder maintenance of the excavator need to be done well?

To achieve the precise operation and stable operation of the enterprise, it is necessary to require the components of the hydraulic system to be precise, and the service quality and cleanliness of the oil products must be extremely high. So we deliberately set up oil filters and return oil filters in the hydraulic control system, as if our human liver can remove harmful substances from the blood. The hydraulic filter can remove impurities in the system at the same time, thereby ensuring the normal production and operation of the hydraulic system. If students lack the filtration of useful information on the hydraulic filter element, impurities will directly and economically enter our hydraulic system, accelerate the development of hydraulic component wear, lead to insufficient design pressure of the education system, abnormal movement, and ultimately lead to social vehicles unable to meet construction requirements, overhaul in advance, and then generate unnecessary repair costs and downtime losses.

Special hydraulic oil, sturdy filter housing, filter holes of the same size. And filter paper end cap: high temperature resistant special filter paper glue is used between the first and last folds of the filter paper, with good sealing and uniform arrangement. When the high-pressure hydraulic oil flows, the filter paper is not easy to float, ensuring the flow and filtering effect.

What aspects of the hydraulic cylinder maintenance of the excavator need to be done well?

Key points for protection and maintenance of hydraulic cylinders:

1. During use, the oil cylinder should be replaced regularly, the filter screen of the system should be cleaned, the cleanliness should be guaranteed, and the service life should be extended. Regularly replace the pressure oil, clean the system filter in time, and ensure the cleanliness of the hydraulic oil, which is also very important for extending the service life of the hydraulic cylinder.

2. Each time the cylinder is used, it must be fully extended and retracted for five strokes before running under load. In this way, we can exhaust the air in the system and preheat each system, which can be useful and avoid the phenomenon of air or water in the management system, and do not form a gas in the cylinder body through blasting, which will damage the seal and cause problems such as cylinder leakage.

3. Control the temperature of the system. Excessive oil temperature will shorten the service life of the seal. Long-term high oil temperature will cause the seal to deform permanently or even fail completely.

4. Protect the outer surface of the piston rod to avoid damage to the seal by collision and scratching, and often arrange the dust ring part and sand of the cylinder dynamic seal on the exposed piston rod to avoid dirt adhering to the surface of the piston rod from entering the cylinder, which is not easy to clean and damages the piston, cylinder or seal.

5. Check the connection parts such as threads and bolts frequently, and tighten them immediately if they are loose.

What aspects of the hydraulic cylinder maintenance of the excavator need to be done?

6. Use smooth parts to connect frequently to avoid rust or abnormal wear in the absence of oil.

7. Normally, we should conduct a full extension and full retraction test run for 3-5 strokes before working each time we use it. The purpose of this is to exhaust the air in the system and preheat each system, so as to effectively avoid the presence of air or water in the system, causing gas explosion in the cylinder body, which will damage the seal and cause failures such as oil cylinder leakage.

8. Anti-corrosion and anti-rust. Lubricate the connection parts frequently to prevent rust or abnormal wear in the absence of oil. Especially for some parts with rust, they should be handled in time to avoid oil leakage in the hydraulic cylinder due to rust.

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