Abstract: A braking control system for agricultural tractors comprises:of the type having a pair of front wheels and a pair of rear wheels with at least one pair being driven through a differential and wherein individual wheel brakes are individually controlled through a hydraulic braking control unit which in turn is controlled by an electronic control unit which causes the braking control unit to apply braking pressure to slow the wheels on the inside of the steering bend in response to signals received by a steering angle sensor.

Abstract: To facilitate construction of internal combustion engines rotating in opposite directions using the same crankcase, three recessed bearings 5, 5a, 5b, are formed in the crankcase. For engines operating in a first direction of rotation, a first bearing 5 supports a first intermediate gear 4 to provide the driving connection between the crankshaft 2 and the camshaft 7, and for an engine having an opposite direction of rotation the second and third bearings 5a, 5b, support a second intermediate gear 4 and the first intermediate gear 8 to provide the driving connection between the crankshaft 2 and the camshaft 7. This construction permits a simple conversion operation to change the rotation direction of the internal combustion engine.