1, to prevent the body oil spill oil leakage on the one hand will cause a waste of oil, on the other hand, the lower oil surface of the pool bottom will inevitably cause poor lubrication, leakage should be immediately identified, drain. 2. Keep the crankcase of the engine well ventilated. As the engine works, part of the exhaust gas enters the crankcase along the piston and the cylinder wall. The high-temperature and high-pressure exhaust gas reacts with the engine oil to accelerate the oxidative deterioration and formation of gum and coke. Therefore, worn pistons, liners, or valve guide assemblies must be replaced in time to reduce exhaust squats. At the same time, we must always check whether the vents are unblocked, and ensure that the exhaust gas in the crankcase can be discharged in time. 3, to prevent the fuel from leaking into the oil pan due to the fuel pan will dilute the oil, so that the viscosity of the oil drop, prematurely lose the role of lubrication, so the diesel fuel injection pump pressure is sufficient, the atomizer atomization is good, the throttle control is reasonable Make sure the fuel burns completely. 4, to avoid the engine working water-cooled engine under high temperature conditions, the general requirements of the normal operating temperature is 80-95 °C, the temperature is too high will make the engine oil thin, and accelerate engine oil deterioration. Therefore, if it is found that the water temperature is too high, it should be immediately stopped and checked before troubleshooting. 5, regular maintenance of oil filter because of prolonged use, will cause filter filter plugging, severe blockage will force the safety valve to open, after the safety valve is opened, the unfiltered oil directly into the movement of the auxiliary surface, one to exacerbate the parts Wear, and secondly cause the accumulation of impurities in the oil pan, eventually accelerating oil failure. Therefore, the filter must be cleaned regularly and the filter element must be replaced. 6. Regular cleaning of the oil sump of the oil sump will inevitably be contaminated by the exhaust gas and produce many harmful substances after use for a period of time. If the residual oil in the engine is mixed with the new oil, the used oil will cause rot to the new engine oil. Therefore, the oil pan, main oil passage and oil filter must be thoroughly cleaned when changing the oil. The method for cleaning the waste oil in the engine body is: after shutting down, remove the hot oil and add the same amount of clean diesel oil. After allowing the engine to run idly for 3-5 minutes, the net oil can be released. 7. Select the oil of the right grade to select the engine oil according to the engine's instructions, and select the appropriate engine oil according to the changes of the season and the change of the machine's use location. Before replacing the oil, the lubricating oil tract should be cleaned in the same way as the scavenged oil in the machine body.
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