Zhang Chunyu, Chaoyanggou Town Government, Zhangzhou County, Heilongjiang Province The Dongfanghong caterpillar tractor has eight bolts on each side of its shell. Its role is to connect the drive wheels, the large reduction gears and the drive hubs, and transmit power externally, which is subject to great torque and shear force. Therefore, the drive wheel bolt has a certain hardness, and the fit between it and the large reduction gear is an interference fit. Due to the unreasonable method of assembly, the joint between the bolt head and the screw is cracked, but the inner eye is unaware of it. At this moment, the bolt is subjected to force during the work of the tractor, and the head of the bolt will be broken off at the edge of the shell. If it is not removed timely, the consequences are very serious. For example, during work, the broken bolt head is brought into the middle of the size reduction gear through the lubricant, resulting in teeth cracking, cracking of the shell and cracking of the rear axle shell, and the economic loss is very serious. Normally, all the red parts of the east are removed when the bolt heads of the drive wheels are taken, and then the bolt heads are removed and replaced. In this way, it takes half a day for two people to work. Through many years of practical work, according to the reduction of the mechanical structure of the Oriental red edge, summed up the provincial labor, saving time and effort to simply remove the drive wheel bolt head method: that is, first remove the drive wheel cover, and then remove the pressure plate Lock the steel wire with the screw, and withdraw the pressure plate screw 5~7mm, and then remove the connection bolts of the bottom plate and the side shell, and use the sledge hammer to hit the top of the teeth of the drive wheel outwards to the edge of the shell and the bottom plate. So far, with a large screwdriver or flat spade at the bottom of the gap at the bottom of the gap, the bolt head can fall out, and then the components can be installed. Flower Seeds,Potmarigold Calendula,Sweet William,Bigflower Coreopsis Chengdu Lv Mu Tian Xia Agricultural Technology Co. LTD , http://www.cdlmtx.com