Diesel after 48 hours of precipitation
Practice has proved that most of the impurities in diesel oil are soil particles, lime sand, rock powder and tiny dust. The main components of these impurities are sulphur and alumina. If the diesel oil is not directly purified by sedimentation, filtration, etc., and directly used in the fuel system, even if small impurities enter the plunger pair, the oil discharge valve, and the injector, it will be like high pressure and high speed. Grinding the surface of precision parts, destroying their finish and matching clearance. In the long run, it will promote the deterioration of the engine combustion process, exhaust smoke, carbon deposits, aging and deterioration of the oil, weakening the lubrication, thus changing the technical state of the machine and affecting the work of various parts of the engine. Therefore, before the diesel fuel is added to the fuel tank, it is precipitated for at least 48 hours, so that most of the various particles in the diesel oil are precipitated to the bottom layer. When the diesel oil is used about 20 cm from the bottom of the barrel, it should be poured into a closed container. After sufficient precipitation, the upper middle layer oil is added to the oil tank.
Do not run out of fuel in the fuel tank
When the fuel is used up, the impurities in the fuel will enter the diesel coarse and fine filter, which may cause blockage. In addition, the low-pressure oil passage is easy to enter the air, which makes the engine start difficult. Even if it can be started, the running speed is not stable.
It is strictly forbidden to mix old and new engine oil
At present, a small number of operators in order to reduce operating costs, when replacing the oil, leave some of the waste engine oil, plus half or a large mix of oil. As everyone knows, this approach is not worth the candle. Because the waste engine oil contains a lot of oxidized substances, carbon particles and many iron filings, it will greatly shorten the service life of fresh oil and increase the speed of sports wear. It will not only play the role of oil change, but also cause machinery such as burning shaft and shaft. ACCIDENT.
Do not add deteriorated oil to the gearbox
In order to save maintenance costs, some operators add the waste oil from the oil sump to the gearbox, which is not worth the loss. Because the deteriorated oil contains a lot of mechanical impurities, adding to the gearbox will cause the moving parts to wear faster. In addition, after the addition of waste engine oil, the gear oil will become thinner and the gear wear will be intensified. However, the replaced used oil can be added to the air filter oil pan to save fresh oil.
It is strictly forbidden to replace diesel engine oil with gasoline engine oil.
Gasoline engine oil has a low viscosity and is suitable for use under light load. Diesel engine oil has a high viscosity and is suitable for use under heavy load. These two oil additives have different oxidation resistance properties. If replaced, the bearing life will be greatly reduced.
The oil must be precipitated after 96 hours of use.
Fresh motor oil contains a certain amount of mechanical impurities, which must be precipitated for more than 96 hours before use, and then used in the upper part of the clean engine oil. In addition, it is forbidden to refuel in dusty places, etc., and special tools for refueling such as refueling barrels and hand pumps must be cleaned.
The oil level is not allowed to exceed the upper line
The oil level of the oil exceeds the upper line, which not only increases the oil consumption, but also causes the oil to burn. The cylinder produces carbon deposits, which increases the carbon content in the oil, and accelerates the wear of the cylinders and other parts and shortens the service life. In addition, excess oil is sucked into the cylinder, which is prone to fly.
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