1. Avoid using gasoline to clean the filter element. Because the filter paper microporous is very hygroscopic, such as cleaning the filter element with gasoline, the gasoline contained in the micropores of the filter paper quickly catches the fire after the cylinder, which is easy to cause the speed.
The diesel oil that absorbs the filter paper is not volatile. The diesel engine works in the clothing surface and the micro-holes to reduce the air permeability, resulting in poor air intake and incomplete combustion.
2. Avoid washing the dust and dirt contained in the filter paper surface and the micropores with water. When it meets the water, it will form mud, which will cause the micropores of the filter paper to be broken, resulting in serious intake shortage and the diesel engine cannot work. In addition, cleaning the filter element with gasoline and diesel will also reduce the water resistance of the resin-treated filter paper, and the surface fibers will fluff, which will easily cause the filter element to damp during use and adhere to dust.
3. Avoid wiping with a rag. Because it is wiped with a rag, it is not easy to remove the dust. Instead, it will be embedded in the micropores of the filter paper, causing insufficient intake and seriously affecting the normal operation of the engine.
The correct cleaning method is to take out the filter cartridge assembly from the housing, hold the filter cartridge in the hand, hold the small wooden stick in hand, gently tap the filter cartridge to remove the dust and dirt, and then gently brush the deep dust with the brush in the direction of the wrinkles. Then, the center hole of the end cap is blocked by the leather head, and the air is blown inward from the other end, and the dust embedded in the micropores of the filter paper is blown out. When dust is removed, if the filter element is found to be clogged or the filter paper surface is damaged, the filter element should be replaced in time.
This column editor Sheng Kui knows that the diesel engine is procrastinating and preventing the cause and prevention of the Jiangzao Town People's Government of Zhuji City. 3822; life. Benf. When the diesel engine is working, if the speed drops suddenly, the exhaust smokes black smoke and is accompanied by a strong explosion sound. If the diesel engine continues to work, the diesel engine automatically turns off and the crankshaft stops rotating immediately. This is the failure of the crankshaft burning shaft. .
The single-cylinder diesel engine is often a serious fault in the burning of the shaft. The lighter needs to replace the bearing bush. Seriously, the crankshaft must be replaced, resulting in a large economic loss. As long as we routinely check the maintenance, the accident can be completely avoided. Analysis of the cause of the fault The poor lubrication often causes the diesel engine to suddenly catch the shaft during the working process. Generally speaking, it is the reason for the improper maintenance of the operator. You can find the reason from the following aspects and start to solve the poor working quality of the oil pump. The oil is missing. Usually, the oil dipstick is not checked, and the oil is not added in time, so that the oil pump can not absorb the oil due to lack of oil. The oil filter screen is not cleaned for a long time, and the filter screen is blocked by impurities, so that the oil pump can not absorb the oil, resulting in insufficient oil supply. The crankshaft oil passage and the clean room are not cleaned during maintenance, and the oil passage is blocked. The inner and outer rotor wear gap of the oil pump is too large, or the inner rotor shoulder is seriously worn, and it cannot fit well with the lower balance shaft, so that the oil pump works poorly or does not work.
The quality of the oil does not meet the requirements. There is water in the oil. Check the oil dipstick and find that the oil is full. The oil adhering to the dipstick is foamy and the water enters the oil sump. First, check whether the water sealing block on the cylinder head leaks. When checking, it can be clearly seen that the water leaks out. Secondly, the water leakage of the cylinder liner is leaking or the cylinder head is cracked, so that the cooling water enters the oil sump.
There is diesel in the oil, check the dipstick, and the oil surface will overflow. The oil adhering to the dipstick is very thin, and it will spread out quickly on the white paper. The diesel oil enters the oil sump, mainly the plunger sleeve positioning screw on the diesel pump is sealed and the whole piece is damaged. When the diesel engine is working, the high-pressure diesel oil will leak from the positioning hole to the oil sump and release the lubricating oil, resulting in poor lubrication. 3 The oil quality is poor and the impurities are heavy. Some of the operators feel heavy when they shake the car in winter. They think that the oil is too thick, so they add some gasoline, which causes poor lubrication.
In addition, the fueling device does not clean impurities, and enters the oil sump. The quality of the oil itself is not the same. The long-term overload operation of the diesel engine causes the viscosity of the oil to drop, which may cause the crankshaft to be poorly lubricated and cause the shaft to be hung.
The main bearing of the crankshaft and the bearing bush are fixed between the joints, such as the 5195 main bearing between 0.080.12 mm. In actual assembly and use, there is often a lack of detection means, but it must be noted that the clearance can not be too loose, especially after multiple burning of the shaft, the engine is unable to smoke black smoke. The main problem is that the clearance is too large, only the replacement of the crankshaft crankshaft can Solve the problem fundamentally.
2. Measures to prevent the diesel engine from burning the shaft. The main reason for the above-mentioned diesel engine to hold the shaft is that as long as the inspection is intensified and the maintenance work is done, it will get twice the result with half the effort.
Regularly check the height of the oil surface and replace it with the appropriate type of oil. Generally, the viscosity of the oil in summer is large, and the viscosity in winter is small. During use, the oil pressure of the oil is observed. If the indicator is not raised, it should be checked and eliminated.
In winter, the temperature is low. After starting the engine, warm up for a few minutes, and then the friction parts are fully lubricated before starting work.
Always clean the oil filter to prevent clogging, diligent inspection, oil in the oil passage of the oil pump. When removing the crank chamber, the two heads should be tightened to prevent the oil from leaking and causing the shaft to catch the shaft.
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