Abstract: An agricultural vehicle is disclosed having a sprung chassis, a rear axle assembly which forms part of the unsprung mass of the tractor and is connected to the chassis by means of a hydraulic suspension, and a hitch assembly mounted on the chassis. The hitch assembly forms part of the sprung mass of the vehicle when operating in a transport mode and the hydraulic suspension additionally has a working mode, in which the suspension is locked, in order to maintain the chassis at a fixed height relative to the rear axle assembly.

Abstract: An agricultural vehicle is described having a chassis and a cab mounted on the chassis. The fore end of the cab is mounted on the chassis for pivotal movement about a transverse axis but is prevented from moving relative to the chassis in a vertical plane. The aft end of the cab is resiliently supported on the chassis by springs and is connected to the chassis by means of a linkage, preferably a Watts linkage, that permits movement of the aft end of the cab in a vertical direction towards and away from the chassis while preventing transverse movement of the aft end of the cab.

Abstract: An agricultural tractor is disclosed wherein a base frame and an operator's cab mounted on the base frame includes a wall having a passage which is normally sealed with a removable window panel. The panel has a generally rectangular shape, except for a triangular cut-out in one of its corners. In one position of the panel, the cut-out is covered whereas in another position the cut-out is uncovered so as to form an aperture for accommodating the passage of a control cable for the remote operation of external equipment through the cab wall.