When the fuel of straw briquetting machine will run out, the impurities in the fuel will enter the coarse and fine diesel filters, which will easily cause blockage. In addition, air is easy to enter the low-pressure oil circuit, which makes it difficult to start the engine. Even if it can be started, it will affect the rotation speed during operation. Most impurities in diesel oil are soil particles, lime sand, rock powder and tiny dust. The main components of these impurities are sulfur and bauxite. If the diesel oil of straw briquetting machine is directly used in the fuel system without precipitation, filtration and other purification treatments, even small impurities will grind the surface of precision parts like abrasives under high pressure and high speed, destroying their smoothness and fit clearance.

If this is done for a long time, the combustion process of the engine will deteriorate, the exhaust gas will smoke and produce carbon deposit, which will promote the aging and deterioration of the engine oil and weaken the lubrication effect, thus changing the technical state of the machine and affecting the work of all parts of the engine. Therefore, before the diesel oil is added to the fuel tank, it should be precipitated for at least 48 hours, so that most of the particles in the diesel oil are precipitated to the bottom. When diesel oil is used about 20 cm away from the bottom of the barrel, it should be poured into a closed container, and the middle and upper layers of oil should be added to the oil tank after sufficient precipitation.

In order to reduce the operation cost, a few users leave some waste engine oil when changing the engine oil, and then add half or more new engine oil for mixed use. As everyone knows, this practice is not worth the candle. Because the waste engine oil contains a lot of oxidizing substances, colloidal carbon particles and many iron filings, it will greatly shorten the service life of fresh engine oil and increase the speed of sports wear, which will not only fail to change the oil, but also lead to mechanical accidents such as burning tiles and holding shafts. Therefore, it is of great significance to master the fuel knowledge of straw briquetting machine for better use.