Pay attention to the repair and maintenance of TEREX spare parts. Are there any wrong operations? Maintenance is an effective means to restore the performance of heavy trucks and extend their service life. However, in the actual operation process, some users and maintenance personnel have many wrong practices, which affect the normal use of heavy trucks. During maintenance, it is forbidden to use butter indiscriminately. Butter is a kind of grease commonly used in the repair of construction machinery, which can play the role of lubrication and sealing. Therefore, some repairmen will coat the cylinder gasket with a layer of grease when installing the cylinder gasket, believing that this can increase the sealing performance of the diesel engine. However, this has affected the working performance of the diesel engine.

The cylinder gasket 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 generated in the cylinder, but also seal the cylinder head and the cooling water and lubricating oil in the cylinder block. Therefore, when disassembling the cylinder gasket, pay special attention to its sealing quality.

If the cylinder gasket is smeared with butter during installation, when the cylinder head bolts are tightened, part of the butter will be squeezed into the cylinder water channel and oil channel. When the cylinder is working, due to the high temperature, part of the butter left between the cylinder gaskets will flow into the cylinder for combustion, and the other part will remain on the junction surface between the cylinder block and the cylinder head. The TEREX spare parts make the gap between the cylinder gasket, cylinder head and the plane of the cylinder block, High temperature and high pressure gas can easily impact the cylinder gasket from here, damage the cylinder gasket and cause air leakage.

In addition, when the butter is kept at high temperature for a long time, carbon deposits will be generated, which will cause premature aging and deterioration of the cylinder gasket. Therefore, do not apply grease when installing the cylinder gasket.

In order to tighten the nuts easily and prevent corrosion, many repairmen apply oil on the bolts and nuts of the tires. In fact, this is a wrong practice. After the TEREX spare tire nut is tightened, the threads are self-locking. This is because the thread helix angle is less than the equivalent friction angle between threads. In the bolted connection given by TEREX spare parts, the helix rise angle is a certain value, while the equivalent friction angle varies with the friction state between threads.

Evidently, the equivalent friction angle between threads decreases after oil coating, and the self-locking performance of bolted connection becomes worse. Therefore, never apply grease or oil on the bolts and nuts of the tire. In this way, the nut will become loose and even cause accidents.

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