I have a Ransome AR 250 with 38hp Kubota diesel. The mower has an 84" cut. There are three independent hydraulic decks in front, and two underneath. The mower has started leaving little strips of unmowed grass, but I don't see any way to adjust the decks. I can't seem to find anyone locally that knows anything either. Anyone that is familiar with this machine and could give me some advice would be greatly appreciated.