The main reasons for blue smoke from excavators include the following:
Lubrication system failure: the lubrication system plays an important role in the normal operation of the excavator. If the lubrication system malfunctions, such as high oil level, poor oil quality or lubricant pump, filter element and other components failure, will lead to increased friction, which in turn triggers high temperature and blue smoke phenomenon.
Fuel system failure: the fuel system is responsible for supplying fuel to the engine, if the fuel supply is insufficient or poor quality, it will also lead to blue smoke from the excavator. In addition, the fuel pump, injector nozzle and other components failure can also cause blue smoke.
Oil leakage or sealing problem: During the operation of the excavator, if you find oil leakage, especially the leakage of lubricating oil or hydraulic oil, you need to check the sealing of the lubricating system and hydraulic system. If there is a seal failure or oil leakage, it will lead to the failure of the lubrication system or hydraulic system, which will trigger the blue smoke.
Problems with the engine itself: An overheated engine or internal malfunction can also cause blue smoke. For example, badly worn pistons and piston rings, excessive valve and catheter clearances, and clogged air filters can cause oil to enter the combustion chamber, resulting in blue smoke.
Solutions to blue smoke from excavators include:
Check the lubrication system: make sure that the oil level and oil quality of the lubrication system are normal, and replace the lubricant pump, filter element and other parts if necessary.
Check the fuel system: make sure the fuel supply is sufficient and of good quality, and replace the fuel pump, injector nozzle and other parts if necessary.
Check oil leaks and sealing problems: repair oil leaks and ensure that the lubrication system and hydraulic system are well sealed.
Check the engine itself: replace worn pistons, piston rings, valves and guides and other components, and carry out a complete overhaul and repair if necessary.
Through the above methods, you can effectively diagnose and solve the problem of blue smoke from the excavator.
