Hello, I have an Ariens 42 inch Hydro Tractor model 936038 (Kohler 19 HP) . The motion lever is not working, The bar 279 in the parts diagram was hanging loose. I presume the cotter pin/spring clips broke. I reattached it to the forward hole on the triangular shaped plate on the trans-axle but there is no tension when I move the motion lever forward or reverse so I presume something else is also not connected between there and the motion lever. Looking at the parts diagram I am not figuring out what it is though. The triangular plate has two holes. There is a spring bolt holding it against the trans-axle. All that seems fine. I presume that triangular plate has to move (rock) to go from forward to reverse and vary the speed. Are you able to direct me on how to diagnose / repair this?