I purchased a Kubota 3940 GST with a 6 ft mower on it. After some pretty heavy cutting I noticed one of the blades has much more "play" in it than the other one and I think this is causing some problems. I have never replaced blades or taken them off. Can someone give me a short primer on what I am looking at under there. I expected a large bolt and nut arrangement of some sort, but am thrown off a little when it looks like the bolt I was expecting has a round head on it. Elementary, I am sure, but thought I would ask before i tangle with it.
DDos