The fuel injector is not a part that needs to be replaced on a regular basis, as long as the part is not damaged, it should not be replaced.
The fuel injector is continuously applied to the fuel system pipe by means of high pressure through the fuel pump located in the fuel tank.
The injector is directly installed on the cylinder head of the diesel engine, and the head of the injector is in contact with the high-temperature combustion chamber. Its working conditions are very harsh, so it is one of the key components that affects the design index and performance of the diesel engine.
The fuel injector should be checked and adjusted once after 700 hours of operation. If the opening pressure is lower than the specified value of 1Mpa or more or the head of the needle valve has serious carbon deposits, the needle valve should be removed and put into clean diesel oil to scrape off the carbon deposits with wood chips.
In order to obtain information from the outside world, people have to rely on sense organs. However, it is far from enough to rely on people's own sensory organs to study natural phenomena and laws as well as their functions in production activities. To accommodate this, sensors are needed. Therefore, it can be said that the sensor is the extension of human facial features, also known as electric facial features.
1, diesel oil is not clean, there are impurities in the high-pressure oil pipe, so that the needle valve coupling is not strictly closed, the high-pressure gas in the combustion chamber is channeling back, and the needle valve coupling is burned out. In addition, the injector pressure regulating spring, tappet and other parts of the dirty things through the injector tappet moved to the upper part of the injector needle valve, or on the oil road to prevent oil leakage of cotton rope, lead wire through the high pressure tubing into the injector, will make the needle valve parts stuck.