在使用过程中,装载机铲斗与动臂铰接部位的下轴套会逐渐磨损,对磨损严重者就需要更换。更换下轴套时,应保证4个下轴套的同轴度,因为铲斗要以铲斗下销轴为中心进行转动,如果4个下轴套的同轴度超差,虽然下销轴勉强可以与动臂铰接,但在使用过程中,下销轴会经常窜出下轴 During use, the lower bushing of the loader bucket and the articulated part of the boom gradually wear out, and those who wear seriously need to be replaced. When replacing the lower bushing, the concentricity of the four lower bushing should be ensured because the bucket should be rotated around the lower shaft of the bucket. If the concentricity of the four lower bushing is out of tolerance, Barely articulated with the boom, but in use, the lower pin will often sprang out of the lower shaft