Abstract: A draft control mechanism for a tractor having a three-point hitch for attachment of a ground-engaging implement. The draft control mechanism utilizes an upper link arm connected to the tractor with a single load pin which houses a strain sensor for generating the control signals to control a lift mechanism connected to the implement. The pin is attached between two flanges of an upper link bracket to the rear of the tractor. Each flange includes a bushing surrounding the portion of the pin disposed therein. The pin includes a pin extension protruding from the outer side of one of the bracket flanges. A sealing cover is disposed over the pin extension with a rotation stop to restrict pin rotation.

Abstract: A shield assembly for a power take-off shaft protruding from a tractor has first and second generally vertical, laterally spaced side plates adapted to be positioned on opposite lateral sides of the shaft. A cover extends between the side plates and is adapted to be positioned above the shaft. The cover is pivotable about a horizontal pivot axis and movable in a generally linear direction between a first pivoting position and a second linearly displaced pivoting position. A positioning member is disposed on one of the cover and the first side plate, and first and second stops are disposed on the other of the cover and the first side plate. The first stop and positioning member are spaced approximately the same radial distance from the horizontal pivot axis when the cover is in the first pivoting position, and the second stop and positioning member being spaced approximately the same radial distance from the horizontal pivot axis when the cover is in the second linearly displaced pivoting position.

Abstract: A roll over protection apparatus which can be angularly and pivotably moved into various positions relative to the frame of an implement. The roll over protection apparatus includes a roll bar assembly and a mechanism for adjustably mounting the roll bar assembly to the implement frame. The mounting mechanism anchors the roll bar assembly in a manner permitting adjustment of the roll bar assembly into a position best suited for the particular application of the implement while maintaining protection for the operator. Locking mechanisms are also permitted for releasably securing the roll bar in adjusted positions relative to the implement frame.