This is a hydraulic dump trailer that I built when I got bored recovering from knee surgery. It is powered by a small self contained pump. The cylinders are double acting and there are four of them pushing a common lift mechanism. It also has a landing gear on the front. Control of the pump is by a remote unit mounted on the tow vehicle. There is also a quick disconnect for the battery so the tow vehicle can recharge the trailer battery. It dumps two FULL scoops from a Bobcat 331 track hoe with no problem. Even though you have four tires, it is a floating pivot system. Wonderful for very heavy loads, but a little rough on a sharp turning radius. File one of two
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