To replace the belt on a Toro snowblower, remove the ignition key, belt cover, auger pulley and drive belt. Take the new drive belt and run it through the engine and idle pulleys. After securing the drive belt, replace the auger pulley and route the new belt around it carefully. Using a wrench set, tighten the auger pulley until the belt is taut in the snow blower. Test the drive belt to ensure it is securely routed around the pulleys.
Before removing and replacing the drive belt, gather the necessary tools and materials, including a new drive belt, a socket or ratchet set, an adjustable wrench, plenty of rags and a wrench set. If the belt cover does not come off easily, use a knife or box cutter to open the belt cover. Loosen the auger pulley with a ratchet or wrench to remove it without damaging the part or the old belt.
You may need to loosen the engine and idle pulleys to route the new drive belt through them. After routing the new drive belt through the snow blower, use the ratchet or wrench to tighten any of the loose pulleys and bring the drive belt taut. Replace the belt cover when the process is complete.