A control mechanism for a hydraulic assembly is disclosed. The control mechanism comprises a hydraulic pump, a swash plate, a control arm, a return to neutral mechanism and a cruise control arm. The control arm is linked to the swash plate and is moveable in such a manner so as to provide the swash plate with a plurality of non-discrete angular orientations with respect to the hydraulic pump. The return to neutral mechanism is used to move the control arm from a driving position to a neutral position. The cruise control arm is moveable between a first position and a second position. In the first position, the cruise control arm is disengaged from the control arm. In the second position, the cruise control arm engages the control arm to resist movement of the control arm from one of a plurality of non-discrete forward driving positions to the neutral position under the influence of the return to neutral mechanism.