Battery Terminal Wires Overheating Tractor Stops Working

I am new to the tractor world and purchased a, I think, 1986 JCB 201S; it has these #s on a metal plate on the left side of the roof 86/296UK92AF71593 and 86/295UK92AR71593, it also said that the machine was from England.

Initially, it started, but soon after while being used it shuts down.

I had someone check it out and they said that there is an electrical problem because the terminal wires, both + and -, are overheating. Felt both wires and he was correct. He did not do any other...

Battery Terminal Wires Overheating Tractor Stops Working