Appearance inspection method of transmission chain

1. Whether the inner/outer chain pieces are deformed, cracked, or corroded.
2. Whether the pin is deformed, rotated, or corroded.
3. Whether the roller is cracked, damaged or excessively worn.
4. Whether the joint is loose and deformed.
5. Is there any abnormal sound or abnormal vibration during operation? Is the chain lubrication condition in good condition?