1.The sprocket should be installed on the shaft without skew or swing. In the same transmission assembly, the end faces of the two sprockets should be in the same plane. When the center distance of the sprockets is less than 0.5 meters, the allowable deviation is 1 mm; when the center distance of the sprockets is more than 0.5 meters, the allowable deviation is 2 mm. However, friction on the sides of the sprocket teeth is not allowed. If the offset of the two wheels is too large, it will easily cause the chain to break off and accelerate wear. Pay attention to checking and adjusting the offset when replacing the sprocket.​

2.The tightness of the chain should be appropriate. If it is too tight, it will increase power consumption and the bearings will easily wear. If it is too loose, the chain will jump and fall off. The tightness of the chain is as follows: lift or press down from the middle of the chain, and the center distance between the two sprockets is about 2-3cm.​
3.If the new chain is too long or has stretched after use, it is difficult to adjust. You can remove the links depending on the situation, but they must be an even number. The chain link should pass through the back of the chain, the locking piece should be inserted outside, and the opening of the locking piece should face the opposite direction of rotation.​
4.After the sprocket is severely worn, a new sprocket and a new chain should be replaced at the same time to ensure good meshing. You cannot just replace a new chain or a new sprocket alone. Otherwise it will cause poor meshing and accelerate the wear of the new chain or new sprocket. After the tooth surface of the sprocket is worn to a certain extent, it should be turned over in time (referring to the sprocket used with adjustable surface). to extend the use time.

5.The old chain cannot be mixed with some new chains, otherwise it will easily cause impact in the transmission and break the chain.​
6.The chain should be filled with lubricating oil in time during work. Lubricating oil must enter the matching gap between the roller and the inner sleeve to improve working conditions and reduce wear.​
7.When the machine is stored for a long time, the chain should be removed and cleaned with kerosene or diesel, then coated with engine oil or butter and stored in a dry place to prevent rust.