I have a John Deere brush hog, fourteen foot, solid deck. Old one probably late 60's early 70's that I am trying to repair. It has two blade assembly's seven feet each. I initially thought that the key on one side of the assembly had sheared. Does not seem the be the problem, but I still have to remove the blade. I can't seem to get it off. Should be a tapered shaft with a key slot, with a bolt in the end of the shaft. This is how the other side is, that I fixed a few years ago. Anyway, I have the bolt removed, and have been using penetrating oil (PB Blaster) and hitting it with a hammer to vibrate and help it penetrate. No luck, so I have hydraulic jacks on each side of the shaft, putting pressure on the blade assembly, while vibrating with oil. No luck. This morning while pressure is applied, I tried heating up the blade part to a light red. No luck. I am thinking may next is cherry red, with pressure. All ideas appreciated. miles
