Abstract: A hydraulic steering system for a tractor is provided which can be operated in a conventional steering mode or in a fast steering mode. In conventional steering mode, a conventional steering wheel and steering motor direct pressurized oil to the steerable wheels for selecting the turning direction, the turning angle, and the speed with which the turning angle is achieved. In fast steering mode, a fast-turning valve is controlled by the operator to direct oil directly to the steerable wheels, thereby by-passing the steering motor. The conventional steering wheel and steering motor continue however to control the steering operation.

Abstract: A hydraulic valve having a main body in which is formed a pressurized-fluid inlet opening; a first conduit communicating hydraulically with a user device; a second conduit communicating hydraulically with the user device; and at least one spool for regulating pressurized fluid flow to and from the user device; the spool having a longitudinal axis, and the position of the spool being regulated by an actuating device; the hydraulic valve being characterized in that the actuating device has a guide member for preventing the spool from rotating about the axis; the actuating device also having a cable, e.g. a Bowden-type cable, for moving the spool in two opposite directions defined by the longitudinal axis.

Abstract: A hydraulic steering system for a tractor is provided which can be operated in a conventional steering mode or in a fast steering mode. In conventional steering mode, a conventional steering wheel and steering motor direct pressurized oil to the steerable wheels for selecting the turning direction, the turning angle, and the speed with which the turning angle is achieved. In fast steering mode, a fast-turning valve is controlled by the operator to direct oil directly to the steerable wheels, thereby by-passing the steering motor. The conventional steering wheel and steering motor continue however to control the steering operation.

Abstract: An engine delivers torque to a transmission drive shaft through a flywheel and a damper. The damper includes a drive plate attached to the flywheel which is in turn mounted on the engine crankshaft. The damper has two driven plates which are fixed on the transmission drive shaft. The drive plate and driven plates have openings for retaining springs through which torque is transmitted from the drive plate to the driven plates. The flywheel has a plurality of arcuate segments equally spaced apart around a peripheral edge to form a plurality of windows. One of the driven plates has a plurality of radially extending fingers each extending into one of the windows so that gaps exist between each finger and two adjacent arcuate segments. As torque is transmitted through the damper the springs are compressed and the fingers move in the windows.