How do you replace belt on 477 haybine?

To replace the belt on a 477 haybine, first, ensure the machine is turned off and safely secured. Remove the guard that covers the belt and then loosen the tension by adjusting the idler pulley. Carefully slide the old belt off the pulleys and replace it with the new belt, ensuring it is properly aligned. Finally, re-tension the belt and replace the guard before testing the machine.