Designed for Category 1 and 2 tractors, the self-contained Hydraulink Air-Over-Hydraulic Top Link is a cylinder with ram that operates utilizing a combination of air pressure and hydraulic fluid. To attach an implement, simply connect the device to the tractor pin, open the valve, pull out the ram and connect it to the implement, then close the valve. When ready to use the implement, the valve is opened, the three-point lowered to the ground, then the valve closed; all of which can be done from the tractor seat. The ram operates with a 3/4- to 1-inch air cushion that automatically fine-tunes during operation and acts like a shock absorber to provide a smoother ride.