Implements are usually the plough or the cultivator. The plough pivots around its centre axle each set of plough blades operating in turn. The plough is steered.
A cultivator, using up to 16 tines, is turned by the power of the opposite engine as it starts to pull. At the same time the tines are lifted out of the ground. When the cultivator is ready the steersman pulls a lever to drop the implement into the ground.