In the hot summer, the excavators on the construction site began to have frequent failures, and the black smoke from the excavators became the focus of the excavator failures. The exhaust pipe of the excavator emits black smoke during operation, and the diesel engine also "chokes" when operating the bucket stick. Several reasons are summarized for the problem of black smoke from the engine: for example, the cylinder pressure is not enough and the combustion is not sufficient; Unreasonable atomization of fuel injector; The quality of diesel oil is too poor; Too much oil is ejected; The fuel injection is not uniform and the oil enters the combustion chamber. If you want to quickly and accurately solve the problem of black smoke from excavation, please consult a professional excavator maintenance worker for specific conditions.
Causes of black smoke from engine:
1. There may be a problem with the engine (incomplete fuel combustion, poor atomization, too much carbon in the piston)
2. It is possible that the diesel oil is not atomized completely in the cylinder, resulting in black smoke
3. Another possibility is that the hydraulic system is choked, causing black smoke
4. Focus on whether the supercharger is damaged. The failure of the supercharger is also a factor of black smoke.
5. It may be a problem with the fuel injection nozzle (check the fuel injection nozzle when the cylinder is disconnected, and replace it if there is a problem
6. Also pay attention to the amount of black smoke: if the black smoke is small, it may be that the air filter has been dirty, or the diesel filter element has not been replaced for a long time; If the black smoke is large, generally speaking, it may be that the diesel combustion is insufficient. It is necessary to focus on detecting the oil pump and nozzle, and it is not ruled out that the oil volume of the oil pump is too large.
7. If the hydraulic fault is caused by the hydraulic fault, the black smoke from the engine will be accompanied by the phenomenon of suffocation.
