Purdue University agricultural engineers developed an Electric-Winch Platform Lift that they mounted on a John Deere 4430 tractor. The benefits of this lift are its simple construction and relatively low cost. However, there are also these disadvantages—(a) the steps leading to the cab have to be removed to install the lift, thus interfering with normal access; (b) the lift partially obstructs the operator's view on the left side; and (c) because its frame extends below the tractor's main framework, the lift could be damaged or cause some crop damage. The lift's mounting frame was constructed from a steel plate bolted to the tractor, with a horizontal beam extending from it 8½ inches. Welded to the beam was a vertical steel channel; and welded to the channel were two lengths of Uni-strut track positioned parallel to one another, with their track openings facing each other to serve as the guide mechanism for the lift. The expanded-steel lift platform had a 14-inch-long steel plate welded vertically to one side so it could slide between the Uni-strut track slots. A 12-volt DC electric cable winch, mounted on the top of the vertical steel channel, powers the lift by pulling the platform's steel plate slide up and down the track. A self-centering remote control switch, mounted on a vertical square tube on the platform, operates the lift.