The excavator repair engine shall not be affected by general conditions. If the excavator repair operation is shut down suddenly, the following inspections shall be conducted: 1. First, the oil supply path of the excavator shall be inspected to check whether the oil supply is smooth? Is the oil passage blocked? It is recommended to clean the fuel filter, replace all filters, disassemble the diesel pump, and check whether the nozzle length can reach 6 ~ 7 cm. Secondly, check whether the engine is overloaded or overheated due to long-term operation, and start the self-protection function of the engine. 3. The fuel circuit of the excavator is usually faulty. It is recommended to carefully check the oil circuit for oil leakage or oil leakage, check that the joint seal is not damaged, check that the filter element is not stuck, and check that the water cover of the oil-water separator is not tightened. 4. It may also be a hydraulic problem.
Specifically, the power of the hydraulic pump and the engine do not match. At this time, professional maintenance equipment shall be used for measurement. The pressure of the commissioning valve group shall be professional equipment. There are two common forms of flameout in excavator maintenance: 1. Automatic flameout and self flameout in excavator maintenance. 2. Flameout and flameout of excavator repair load. Reasons for repair and flameout of excavator:
The common reasons for the self repair and automatic shutdown of excavators are as follows: 1. Lack of fuel for their own stalls. 2. Oil leaking from the oil digging circuit and fuel pump failure. 3. When the self excavating machine is turned off, if the engine speed gradually decreases before the exhaust pipe smoke phenomenon, it is likely that the excavation oil supply path is not smooth and the engine lubrication is poor, resulting in the burning of the engine Bush axle. 4. When the excavator suddenly shuts down during operation, it may not be clean diesel fuel. It is recommended to replace the diesel filter element and correct the nozzle. 5. If the excavator is automatically shut down after the vehicle is hot, and the name of the excavator cannot be started after it is shut down in a short time, it is likely that the diesel pump (high-pressure pump) or nozzle is a problem, then you can use the diesel pump to flush with cold water. If you can name the pump or nozzle immediately, it is a problem. 6. Engine problem: the intake resistance of the engine, and the self extinguishing oil becomes blocked. Hydraulic system problem: excessive pressure pump. 8. Electrical problem of excavator: the control system receives the error signal, resulting in self extinguishing.
