Hello. I am having problems engaging the blades on my mower. It is Kubota ZD331. I can turn the mower on and it drives, it's just that the blades won't turn on. When i go to turn the blade on it's like the handle is stuck on something or maybe something else. Before i got on here i called the dealership and spoke to one of the mechanics. He said that it could be a fuse in the pto box or the pto box itself. Does anyone else have any other suggestions. I am trying to figure this problem out today so i can get it fixed before the week ends. Thanks.