1 Instead of using kerosene instead of diesel, because the viscosity of kerosene is smaller than that of diesel, the natural point (at 435°C) is higher than that at diesel (at 336°C). Therefore, after the diesel engine is used with kerosene, the starting performance deteriorates and the engine emits black smoke. Carbon is serious; precision coupling parts such as injection pump plungers are low in viscosity because of kerosene, leakage loss increases, and the lubricating effect becomes worse; unburned kerosene that is injected into the cylinder will scour the cylinder wall, dilute the oil, and cause early wear of cylinder liners and pistons. . 2 Do not use engine oil instead of gear oil. Compared with gear oil, the oil has low viscosity and weak wear resistance and load capacity. After replacing oil with engine oil, the drive train gear is not easy to hang on the oil film, and the lubrication effect is deteriorated. Causes early wear of the transmission. 3 Do not use gasoline engine oil instead of diesel engine oil. Because the compression ratio of the diesel engine is large and the exhaust gas is seriously smashed, in order to prevent premature oxidation and deterioration of the engine oil, antioxidant additives are added to the diesel engine oil. If gasoline engine oil is used instead of diesel engine oil, not only is the engine oil susceptible to oxidation and deterioration, but it also causes damage to diesel engine bearings that are not resistant to corrosion. 4 Do not use ordinary gear oil instead of hyperbolic gear oil. Hypoid gear In the meshing process, there is a large relative slip between the two gear tooth faces, and the oil film between the tooth faces is easily destroyed. In order to reduce friction and wear, hyperbolic gears Should use a good anti-wear, load-resistant lubricants ---- hyperbolic gear oil. 5 Do not use engine oil instead of brake oil Brake fluid is the medium that transmits pressure in the hydraulic brake system of the locomotive. Its main components are castor oil and alcohols. Its solubility is good, it is not easy to produce precipitation, no corrosion, and the expansion rate of rubber parts is small. The oil does not have these characteristics. Instead, it will cause the rubber components of the brake system to swell, which will easily cause the brake to malfunction. 6 Do not use hydraulic oil instead of oil. Hydraulic oil is the medium that transmits pressure in the hydraulic system. It has good anti-oxidation, anti-rust and anti-foam properties. It is not resistant to high temperature, generally does not contain clean dispersant. It is used as engine oil to generate paint film in the combustion chamber, it is not easy to remove. It has low flash point, strong evaporation, and poor stability after heating. It is easily deteriorated after adding crankcase; Ordinary hydraulic oil does not contain anti-wear additives, which will aggravate the wear of the friction pair. 7 Calcium-based greases and sodium-based greases cannot substitute for calcium-based greases for good water resistance, but they are not heat-resistant (use temperature should not exceed 65°C); sodium-based greases can withstand high temperatures of 100--135°C. However, poor water resistance. Should choose to use according to environmental conditions, must not be used in order to avoid reducing the effect of use. 8 Do not add oil or diesel to the grease. To reduce the viscosity of the grease, add grease to the oil or diesel oil. This grease is easy to lose, reducing the use of grease. 9 The oil must not be mixed with diesel or gear oil. In order to adjust the viscosity of the oil, add diesel oil or gear oil to the oil. This will destroy the additives in the oil, which will lead to rapid deterioration of the oil and increase wear of the friction parts. In addition, gear oil must not be blended with diesel. 10 The old engine oil must not be mixed with new engine oil. Because the old engine oil contains substances with strong oxidation ability, the new and old engine oils will accelerate the oxidative deterioration of the new engine oil, which will reduce the use effect and use time of the new engine oil.