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China Water Well Drill Rigs manufacturers Butter the cylinder liner.Butter is a grease commonly used in construction machinery repair, which can lubricate and seal.Therefore, some repairmen install the cylinder liner with a layer of butter on the cylinder liner, thinking that this will increase the sealing of diesel engines.However, this has affected the performance of the diesel engine.Cylinder pad is the most important seal between the cylinder block and the cylinder head of the diesel engine, it can not only seal the high temperature and high pressure gas produced in the cylinder, but also seal the cooling water and lubricating oil in the cylinder head and cylinder block, so when removing the cylinder pad, special attention should be paid to its seal quality.If installed in the cylinder MATS and butter, when the cylinder head bolt is tightened, part of the butter will be squeezed into the cylinder in the channel and the oil duct, stay in the cylinder gasket between the butter in cylinder work, due to the effect of high temperature, part will shed cylinder combustion, others remain in the combination of the cylinder block and cylinder head, cylinder pad, cylinder head and the body plane between aperture, high temperature and high pressure gas from impact cylinder pad, easily damaged cylinder pad, cause air leakage.In addition, the butter under high temperature for a long time will also produce charcoal accumulation, resulting in premature aging and deterioration of the cylinder MATS.Therefore, do not grease the cylinder liner when installing it. (2) Grease the tyre nuts.In order to tighten the nuts easily and prevent corrosion, many repairmen grease the bolt nuts of tires.This is actually a mistake.Because after the tire nut is tightened, the thread has the characteristic of self-locking.This is because the helix Angle of the thread is less than the equivalent Angle of friction between threads.For a given bolt connection, the helix Angle is a fixed value, while the equivalent friction Angle varies with the friction state between threads.Obviously, the equivalent friction Angle between threads decreases after oiling, and the self-locking performance of bolt connection becomes worse.Therefore, never apply grease or lubricating oil to the bolts and nuts of the tire.This, in turn, can loosen the nut and even cause an accident.China Water Well Drill Rigs manufacturers website:http://www.jsdrilltools.com/drill-rigs/water-well-drill-rigs/