Although the surface of the excavator looks very tough, but in fact? The internal components are still very fragile. If the maintenance method is not correct, problems will easily occur. At present, many people have many wrong practices in the process of excavator maintenance, so what? It will affect the normal use of its construction machinery.
Using maintenance strategy for regular maintenance, it is recommended to use original accessories for diesel coarse and fine filters, avoid using auxiliary accessories, and do not cause tens of thousands of fuel injectors or high-pressure fuel pump failures due to hundreds of yuan of filter elements. The precautions for the use and maintenance of the EFI engine of the excavator are regularly maintained according to the manufacturer ’s recommendations. The manufacturer will provide maintenance recommendations, such as replacement of the filter element 500h, you can notify the agent service personnel to come to the maintenance before 500h. It is conducive to the agent service personnel to arrange the trip, which will not affect the normal use of the excavator, and can also protect the engine on time, especially the air filter and diesel coarse and fine filter, engine oil and engine oil filter. It is recommended to use original accessories for diesel coarse and fine filters, avoid using auxiliary accessories, do not cause tens of thousands of fuel injectors or high-pressure fuel pump failures due to hundreds of yuan of filter elements, and use non-original accessories to cause some huge losses. Abound.
Pay attention to the quality of diesel fuel, the content of impurities in the fuel, sulfur, moisture content, acid value will cause corrosion and wear of the fuel injector. Even if the fuel injector is treated with high wear-resistant coating technology, the poor quality of the fuel will cause the filter replacement 2. Hidden maintenance costs and hidden troubles such as increased failure rate. If possible, a set of oil filter can be added. Before refueling, the diesel oil is filtered once. The operator diligently drains the fuel filter element equipped with an oil-water separator. The oil-water separator should be drained frequently, and the air filter should be changed frequently. The air filter is recommended to be used with 2 sets of replacement. The replaced filter is exposed to the sun for one day and then blown with an air compressor, so that it can be blown more cleanly. Every time you add fuel, you should check the quality of the oil visually. If necessary, you can add a crude fuel filter. It is recommended to use a slightly larger throttle. Do not open the throttle very small in order to save a few dollars to avoid high engine load.
Friends who know the engine know that the heavy load operation of the engine is easy to cause incomplete combustion to produce coke. In fact, coke is the culprit that leads to the early life of the injector. When the excavator enters the idle state due to automatic idle speed, it is recommended to lean on the handle when re-working, and work after the engine is running at high speed, so that it not only protects the engine but also protects the hydraulic pump. Use the original parts and oil to be replaced, pay attention to the direction and position of the plug of each sensor, and fill each filter element that needs to be replaced with oil before installing.
