Maintenance is an effective means to restore the performance of special vehicles such as Isuzu garbage trucks and extend their service life. However, in the actual operation process, some operators and maintenance personnel have many wrong practices, which affects the normal use of special vehicles. 1. Only add engine oil but don’t change it Engine oil is indispensable in the use of diesel engines. It mainly plays the functions of lubrication, cooling, and cleaning. Therefore, many drivers will pay attention to check the amount of lubricating oil and add it according to the standard, but they ignore the inspection of lubricating oil quality and the replacement of deteriorated oil, resulting in some engine moving parts always in poor condition. It operates in a slippery environment, thereby accelerating the wear of various parts. Under normal conditions, the loss of engine oil is not large, but it is easily contaminated, thus losing the role of maintaining the diesel engine. During the operation of the diesel engine, a lot of contaminants (soot, carbon deposits and scale deposits generated by incomplete combustion of fuel, etc.) will enter the engine oil. For new or overhauled machines, there will be more impurities after trial operation. If you rush to put them into use without replacing them, it will easily cause accidents such as burning tiles and holding the shaft. In addition, even if the engine oil is changed, some drivers, due to lack of maintenance experience or trying to save trouble, will not thoroughly clean the oil passages during the replacement, leaving mechanical impurities still remaining in the oil pan and oil passages. 2. Use butter indiscriminately (1) Apply butter to the cylinder gasket. Butter is a grease commonly used in construction machinery repairs, which can provide lubrication and sealing. Therefore, when some repairmen install the cylinder gasket, they will apply a layer of butter on the cylinder gasket, thinking that this can increase the sealing performance of the diesel engine. As everyone knows, doing so will affect the performance of the diesel engine. The cylinder gasket is the most important seal between the diesel engine cylinder block and the cylinder head. It can not only seal the high-temperature and high-pressure gas generated in the cylinder, but also seal the cooling water and lubricating oil in the cylinder head and cylinder body. Therefore, when disassembling When installing the cylinder gasket, pay special attention to its sealing quality. If butter is applied to the cylinder gasket during installation, when the cylinder head bolts are tightened, part of the butter will be squeezed into the cylinder water channel and oil channel. The butter left between the cylinder gasket will be affected by the high temperature when the cylinder is operating. It will flow into the cylinder and burn out, while the other part will remain on the separation surface between the cylinder block and the cylinder head, causing...
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