Www.ynzhongtian tractor engine oil change: 1. Select the correct oil, to determine a good oil quality and viscosity grade. 2. Determine the lubricating fuel (oil change) and the period of time, should be strictly in accordance with the refueling equipment lubrication specification. Engine oil to use after a period of time, lubricating oil additives are a lot of wear and tear, oil oxidized to form acidic substances, and condensed water, sludge formation of harmful substances. If you continue to use, not only can not play the normal lubrication, cleaning, sealing, cooling effect, but will corrode engine parts. 3, to ensure that the engine is off tractor. Closed when oil change to be in the normal operating temperature of the engine in the engine, unscrew the filler cap, remove the old oil drain screw release, with a special tool unscrew the old filter. 4, completely let go of the old oil when changing the oil. After the engine oil used for some time, due to the high temperature oxidation, there will be a certain amount of acidic substances, black sludge and water and impurities. They not only cause damage to the engine, will join the new oil pollution affecting performance. 5. Before replacing the oil should consider replacing the oil filter. After a long period of use in the oil filter, it will have a lot of sticky black sludge, particulate matter and other impurities, it diminished or complete loss of filtering capabilities, achieve its proper protection, road blockage will result in lubricants, engine axle, bush-burning, pull tanks and other damage. When you want to check the filter cartridge replacement seals are intact, if there is distortion, damage, etc. should be promptly replaced. Filter assembly should be filled within the filter clean lubricants and seals on Apply lubricant to prevent damage during installation. 6, the engine can avoid cleaning engine cleaning the lubricating oil may occur between different kinds of quality, chemical reaction, so that the new oil deterioration, affecting performance, the final damage your engine. So should regularly use a professional engine to "cleanse" the product of the engine clean. If you have long been using the same brand, same size oil, lubricating oil in place to ensure that the old net, and replace oil filter before the title, do not change the oil every time you have to clean the engine, can be directly added to the new oil. 7, tractor if often run mountain dirt road should also replace the air filter. Adsorbed on the air filter dust can contaminate the lubricating oil, lubricating oil quality deterioration, resulting in engine wear. At the same time, if the air filter element blockage serious increase will allow the intake resistance, engine power down. 8, oil filters installed, tighten the oil drain screw, as required to the engine crankcase filling a certain amount of new oil. Sump oil level should be controlled within dipstick tick down, not too high or too low. If too much fuel will cause excessive oil consumption, increase engine running resistance, fuel consumption increases. And fleeing into the combustion chamber of excess oil will cause the engine burning oil, excessive exhaust emissions, take the blue smoke, oil consumption increased significantly, resulting in an increase in organic carbon inside the engine, and even lead to early burning, burns, pull-cylinder, serious damage to the engine. If the fuel is too small, will cause the oil pressure is too low, poor lubrication and other consequences. For example: Some parts of the engine Lu rim rod, valve, etc. can not get enough lubrication, causing parts to wear out. 9, installed the dipstick, tighten the fuel filler cap, start the engine quickly turn a few minutes, check the oil pressure is normal, with or without leakage, stop to check if an exception should be excluded.