The output shaft of the reducer transmits the power to the main drive wheel through the chain or the V-belt. The friction force between the drive wheel and the traction rope is used as the traction to drive the scraper back and forth. When the scraper is working, the crescent moon on the scraper slides. www(dot)livestocktool(dot)comThe blocks are automatically wiped off and lifted automatically when they return to complete the cleaning operation.