1、挖掘机配件链轮装在轴上应没有歪斜和摆动，在同一传动组件中两个链轮的端面应位于同一平面内，链轮中心距在0、5米以下时，允许偏差1毫米；链轮中心距在0、5米以上的时，允许偏差2毫米。但不允许有摩擦链轮齿侧面现象，如果两轮偏移过大容易产生脱链和加速磨损。
1. The sprocket of excavator fittings should be installed on the shaft without skew and swing. The end faces of the two sprockets in the same transmission assembly should be in the same plane. When the sprocket center distance is less than 0 or 5 meters, the tolerance is 1 mm; when the sprocket center distance is more than 0 or 5 meters, the tolerance is 2 mm. But it is not allowed to have frictional sprocket tooth side phenomenon, if the two wheels deviate too much, it is easy to produce chain off and accelerated wear.
2、挖掘机配件链条的松紧度应适宜，太紧增加功率消耗，轴承易磨损；太松链条易跳动和脱链。链条的松紧程度为：从链条的中部提起或压下，两链轮中心距约为2－3cm。
2. The elasticity of the chain of the excavator accessories should be suitable, too tight increases power consumption, bearings are easy to wear; too loose chain is easy to jump and unlock. The elasticity of the chain is as follows: lifting or pressing from the middle of the chain, the center distance of the two sprockets is about 2-3 cm.
3、挖掘机配件新链条过长或经使用后伸长，难以调整，可看情况拆去链节，但必须为偶数。链节应从链条背面穿过，锁片插在外面，锁紧片的开口应朝转动的相反方向。
3. The new chain of excavator accessories is too long or elongated after use, so it is difficult to adjust. It can be removed according to the situation, but it must be even. The link shall pass through the back of the chain, and the lock plate shall be inserted outside. The opening of the lock plate shall be in the opposite direction of rotation.
4、挖掘机配件链轮磨损严重后，应同时更换新链轮和新链条，以保证良好的啮合。不能只单独更换新链条或新链轮，否则会造成啮合不好加速新链条或新链轮的磨损，链轮齿面磨损到程度后应及时翻面使用。
4. After serious wear and tear of sprocket of excavator accessories, new sprocket and new chain should be replaced at the same time to ensure good meshing. The new chain or sprocket can not be replaced separately, otherwise it will cause the wear and tear of the new chain or sprocket, and the sprocket tooth surface should be turned over in time.
5、挖掘机配件旧链条上不能与部分新链条混合使用，否则容易在传动中产生冲击，拉断链条。
5. The old chains of excavator accessories can not be mixed with some new chains, otherwise it is easy to produce impact in the transmission and break the chain.
6、挖掘机配件链条在工作中应及时加注润滑油，润滑油必须进入滚子和内套的配合间隙，以改善工作条件，减少磨损。
6. The chain of excavator accessories should be filled with lubricating oil in time. The lubricating oil must enter the clearance between roller and inner sleeve to improve working conditions and reduce wear.
7、河北挖掘机配件长期存放时，链条应拆下用煤油或柴油清洗干净，然后涂上机油或黄油存放在干燥处，以防锈蚀。
7. When the parts of Hebei excavator are stored for a long time, the chain should be removed and cleaned with kerosene or diesel oil, then coated with oil or butter and stored in a dry place to prevent rust.
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