Causes and Solutions of Serious Burning of Oil in Tiller
At present, when the cultivator is burning oil during use, some problems have occurred. The exhaust pipe of the engine has been seriously exposed to blue smoke, and even a few oils have been added to complete a class of operation. Some operators have to take the oil. To the field. If such an unfavorable phenomenon is not solved in time, not only the consumption of engine oil will be large, but also the engine will cause serious carbon deposits in the combustion chamber, affecting the engine power, accelerating the wear of parts, and greatly shortening the service life of the machine tools. Therefore, the causes and preventive measures should be Learned.
First, the tiller is often working under overload conditions. In this way, diesel enters the combustion chamber and does not fully burn to form coke. It accelerates the wear of parts such as cylinder walls, pistons, and piston rings, and the oil flows from the worn gap to the combustion chamber to form burning oil. Preventive measures: The engine is prohibited from long-term overloading. When the cultivator is operating in the field, it is generally required to keep the exhaust pipe from emitting black smoke.
Second, the newly purchased or overhauled tiller power will not be put into full operation. As a result, pistons, piston rings, and cylinder walls wear prematurely, causing burned oil. Preventive measures: After the new purchase or overhaul tiller must be run in accordance with regulations. Specific requirements for running-in are: I, II, III gears are to be operated for half an hour, 1/3 load for 1 hour, 2/3 load for 2 hours, reverse gear and air load for half an hour, and the new machine is running normally. Hours later, engine oil sump oil should be warmed up, and the crankcase cleaned and oil changed with clean diesel.
Third, the direction of the piston ring is reversed during engine repair. When the engine is working, the reversed oil ring will send the excess oil under the cylinder wall to the combustion chamber, which will act as an oil pump and cause burning oil. Precautions: Correctly install the engine piston ring, ie the chamfered end of the piston ring faces the combustion chamber.
Fourth, the engine starts frequently. When the engine stalls, the oil will quickly return to the oil pan, so frequent start will make the cylinder liner, piston, piston ring and other parts of the surface often dry friction or semi-dry friction, accelerated wear, resulting in burning oil. Preventive measures: The engine should be lubricated and then started. That is, the crankshaft should be cranked for several revolutions, so that the surface of the auxiliary movement can be lubricated in advance and then started. Temporary parking within 15 minutes, you can idle speed.
Fifth, the engine idles for a long time. Because the engine is idle for a long time, the fuel injectors will be poorly atomized, the fuel and air will not be uniformly mixed, the combustion will be incomplete, carbon deposition will occur, and the wear will be aggravated, resulting in burning oil. Preventive measures: The engine is prohibited from idling for long periods of time. A temporary stop for more than 15 minutes should be turned off.
6. When the cultivator starts, the throttle opens too much. This will supply too much oil to the cylinder in advance, which will result in incomplete combustion of the fuel, resulting in carbon deposits, aggravated wear, and burning of the oil. The correct operation is to start with a throttle slightly above the idle speed and then slowly increase the throttle.
7. When the cultivator is operating, the throttle will be large and small. Suddenly increasing or decreasing the throttle will cause the engine speed to increase or decrease drastically. The fuel and air will be mixed unevenly, the combustion will be incomplete, carbon deposition will occur, and parts wear will be accelerated, resulting in burning oil. The correct operation is to slowly increase or decrease the throttle as required by the workload.
8. Too much oil in the oil pan. If the oil level is too high, the oil will enter the combustion chamber as the engine speed increases, causing the engine oil to burn. Check the amount of oil is filled by the method is: fill the oil to a certain extent, pull out the dipstick to check the oil level, the normal height should be between the upper and lower scale, the oil level higher than the upper scale line indicates that the oil filling too much, oil surface The height of the oil on the lower scale is too low.
Nine, engine oil with long-term deterioration, lack of viscosity, the relevant parts can not get the proper lubrication, and accelerate the wear and tear, the formation of burning oil. Distinguish whether the engine oil is deteriorating: Drip 1 drop of oil on the white filter paper to observe the change. If there are more black particles (asphaltenes, metal chips, carbon particles, etc.) in the black traces of the oil droplets, indicate the filtration. The oil is not deteriorated; if the oil droplets are light in color, the surrounding surface is yellow, indicating that it can continue to be used; if the oil droplets are dark brown and the black traces are uniform and no particles, it indicates that the lubricant has seriously deteriorated. replace.
Tenth, the oil quality is poor, too thin, will not achieve lubrication, the formation of burning oil. The general method of distinguishing the quality of engine oil is to use a little dip in the engine oil, lightly rub it for a few times, and when there is a finger, there should be no drawing; if the engine oil is raised, the oil should be in a linear flow, and there should not be a broken line or a piece-by-block phenomenon. The color of the oil in the sun should be light yellow or reddish, and the transparency is high. Take a little oil and put it on the white filter paper. There should be no impurities in it. The lighted matches should be close to the oil and the oil should not burn, which means that the oil purity is not high. use. The oil type is selected. Normally, No. 11 diesel engine oil is used in winter and No. 14 diesel engine oil is used in summer.
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