Although the surface of the excavator looks very hard, in fact? Its internal components are still very fragile. If the maintenance method is not correct, it is easy to have problems. At present, many people have made many mistakes in the maintenance of excavators, so what? It will affect the normal use of its construction machinery.
Use the maintenance strategy for regular maintenance. It is recommended to use original accessories for the coarse and fine diesel filters, and avoid the use of auxiliary accessories. Do not cause tens of thousands of yuan of fuel injector or high-pressure oil pump failure due to the filter element of several hundred yuan. Precautions for the use and maintenance of the EFI engine of the excavator shall be regularly maintained according to the manufacturer's recommendations, and the manufacturer will provide maintenance recommendations. For example, if the filter element is replaced after 500h, the service personnel of the agent can be notified to come for maintenance before approaching 500h, so as to facilitate the service personnel of the agent to arrange the trip, which will not affect the normal use of the excavator, but also protect the engine on time, especially the air filter and diesel coarse and fine filters Oil and oil filter. It is recommended that the original accessories be used for the coarse and fine diesel filters, and the auxiliary accessories be avoided. Do not cause the injector or high-pressure oil pump failure of tens of thousands of Yuan due to the filter element of several hundred yuan. There are many examples where the use of non original accessories leads to huge losses and cannot be guaranteed.
Pay attention to the quality of diesel fuel. The content of impurities, sulfur, moisture and acid value in the fuel 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 also cause hidden dangers such as frequent replacement of filter elements, high maintenance costs and increased failure rate. If possible, a set of oil filter can be added to filter the diesel before refueling, The operator shall drain the fuel filter element equipped with oil-water separator frequently. The water separator shall drain water frequently and the air filter shall be changed frequently. It is recommended to replace the air filter with 2 sets. Expose the replaced filter to the sun for one day and then blow it with an air compressor, so that it can be blown cleaner. Each time you add fuel, you should visually check the oil quality. If necessary, you can add a primary fuel filter element by yourself. It is recommended to use a slightly larger throttle. Do not turn the throttle too small to save a few dollars on fuel, so as to avoid high engine load.
All friends who know the engine know that when the engine runs under heavy load, it is easy to cause incomplete combustion and carbon deposition. In fact, carbon deposition is the culprit leading to the early death of the fuel injector. When the excavator enters the idle state due to automatic idle speed, it is recommended to lean lightly on the handle when it works again, and then work after the engine runs at high speed. This not only protects the engine, but also protects the hydraulic pump. Use original parts and oil to be replaced, pay attention to the plug direction and position of each sensor, and fill each filter element to be replaced with oil before installation.
