The correct installation of chain directly affects the quality of chain drive and the service life of chain. Therefore, how to ask for the correct installation of chain:
1. Two axes are parallel and two wheels are flat
2. The link between sprocket and shaft is reliable.
3. Excessive tension is not allowed.
4. The chain link is reliable, and the opening end of the spring is opposite to the driving direction.
5. The chain and chain cover should be kept in a certain gap.
6. The new chain (sprocket) shall not be installed and used together with severely worn or unqualified sprocket (chain).