Exclusion of diesel generator gas resistance, resistance, water resistance three faults

(1) Galvation and exclusion method. When the oil barrel is bubble, it is determined that the engine is air resistant to the engine oil resistance, and the motivation can be continued until the air in the pipeline is exhausted, indicating that the pipeline is not damaged, and the engine can work normally. If there is always a gas discharge during the motivation, it is a place where the oil supply line has leaks. The method of excluding the gas resistance is to find the air leak, do a good seal to eliminate the leak, and remove the air in the system.
If the gas in the oil supply line is very hot and the air pressure is low, the fuel molecules are evaporated to form fuel vapor, which is a special case, which is called high temperature galvation, and .
(2) Material impedance and exclusion method. When the oil valve is checked, it can be judged to be the property impedance when it is found to be less oil or oil. Check the part of the barbase, can continue to be inspected by the method of hitting the oil pump. When the handle pump handle is pulled, the resistance is very resistant, you can focus on the oil supply line between the fuel tank to the hand oil pump, and the blocking portion may be fuel in the fuel tank. The import of the tube, the foreign matter in the fuel tank is blocked the oil port, and the clogging site may be a fuel filter. The impurities or colloids in the fuel will block the filter; if it is pushed with the hand oil pump, it feels large, can Keep checking the oil supply line pump from the hand oil to the high pressure pump, and the clogging site may occur in the fuel fine filter. Check if the working oil fine filter is working properly to monitor the \"\" sound that the rotor continues to rotate when the diesel engine has just stopped. If the duration is long, it is a normal sound, if you can't hear the sound of rotation, it happened.
When checking the ice resistance, it must be in the cold winter, and there is water in the diesel. The area of ​​the ice-resistant occurs in the pipeline and pipe joints, and the situation is more complex, the warm line, and dissolve the ice. The pipeline is naturally unblocked, nor does it have to find the exact part of the icing.
When excluding the property, the fuel supply system should also be completely cleaned, even cleaning the fuel tank. In order to prevent the resistance, pay attention to the long-term fuel tank in the fuel tank, but it is not easy.
(3) Water resistance and exclusion method. When the diesel engine is not stable enough, there is a firep phenomenon, even when it is stopped during the operation, it can be judged that the diesel engine occurs; observing the exhaust pipe will find that the exhaust gas continues to take white smoke, can receive the drum from the exhaust pipe or It can generally determine the water resistance failure of the diesel engine than the dropwater. Water resistance is water in the fuel supply system, and there is water in the fuel tank, especially the bottom water moisture. If you confirm the hydraulic resistance, the bottom of the fuel tank should be removed, and the motivation is started to start the engine. Whether the water resistance fault can be excluded; if it can't be excluded, all remaining fuel should be cleaned and thoroughly cleaned the fuel tank and Fuel supply system, replace the fuel filter (core), and then pay attention to the addition of water clean fuel and excludes the possibility of entering the moisture of the fuel system.
Water resistance is more complicated, and it is difficult to fail with diesel engine such as combustion chamber water leakage. For example, the cylinder pad is damaged into the combustion chamber, and the moisture is also discharged from the exhaust tube, and the diesel engine is not stable. The degree of water and the number of cylinders are different, and the drainage volume is not the same; the working conditions of diesel engine are not the same. Therefore, it is necessary to apply experience, according to the engine usage, commonly used conditions, medium consumption, and many other aspects of factors.

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