Have a 4824F Zero turn with just 40 hours on it. The idler pulley spring broke, bought a new one mowed for 3 hours it broke again. Bought another one and mowed for 5 hours, THOUGHT it broke again but ended up being the idler arm breaking this time. I have to say Husqvarna needs to stick to chain saws and trimmers. This Zero turn is junk and cheap parts, soon as I get this fixed it's going down the road and never buying another Husqvarna product. With only a "forum" to get answers to questions or dealer only subjects and no way to contact I won't be buying anymore.