A seasoned gardener can spot a worn belt in a second. Even if you're a beginner, you can use the signs below as a guide.  • In Places where cuts there're cuts made, you can see scream. The belt is stuck and can't move around the pulley, so that's why. The first step to fixing the problem is to change the belt's size. If this doesn't fix the problem, try switching out the belt. • The blades may not work if you let go of the belt. It slows down without warning and cuts in an odd way. Remember that the signs of sliding belts are a lot like those of broken decks. Remember to look for signs of damage on the deck.