As the accuracy and pressure of hydraulic equipment are improved, most hydraulic equipment failures are caused by dirt in the oil circuit). Take extra care when filling hydraulic oil or disassembling hydraulic equipment.
Daily maintenance of hydraulic system of Komatsu excavator:
1. When disassembling or maintaining hydraulic equipment at the construction site: there is a risk of dust entering the hydraulic equipment when disassembling or maintaining the hydraulic equipment at the construction site, and it is difficult to ensure the performance after maintenance Therefore, it is better to replace the complete set of components Disassembly and maintenance of hydraulic equipment shall be carried out in a specially prepared dust-free workshop, and its performance shall be tested with special test equipment.
2. Pay attention to the working environment: avoid filling the machine with hydraulic oil, replacing the filter element or carrying out repair in rainy or windy weather or dusty places.
3. Do not allow dirt or dust to enter when filling hydraulic oil. Be careful not to allow dirt or dust to enter when refilling hydraulic oil Always keep the fuel filler and its surroundings, fuel supply pump and oil tank clean It is a more effective method to use the oil filter to filter out the dirt when storing oil.
4. Sealing the pipe opening: after removing the pipe or equipment, the pipe opening must be sealed with a sealing cover, adhesive tape or plastic bag to prevent dirt or dust from entering If the pipe opening is open or only blocked with a rag, there is a risk of dirt entering or oil leakage polluting the surrounding environment, which is never allowed Waste oil shall not be discharged on the ground at will. The oil must be collected and the customer shall be required to properly dispose of it or take it back with him for disposal.
5. Flushing operation: when disassembling and assembling equipment or changing oil, use flushing oil to remove impurities, sludge and old oil in the hydraulic oil circuit Generally, flushing shall be carried out twice: the first flushing shall be carried out with flushing oil, and the second flushing shall be carried out with specified hydraulic oil.
6. Replace the hydraulic oil when the temperature is high: the hydraulic oil or other oil is easy to flow when the temperature is high, and the sludge in the oil circuit is easy to flow out with the oil Therefore, it is best to change the oil when the oil temperature is high Drain the old hydraulic oil as much as possible during oil change (drain oil not only from the hydraulic oil tank, but also from the oil drain plug in the filter element and oil circuit) if the old hydraulic oil is left, the pollutants and sludge in the old hydraulic oil will be mixed with the new oil, thus shortening the service life of the hydraulic oil.
