The utility model relates to a hydraulic double-side self-tipping four-wheeltrailer which belongs to the technical field of agricultural machinery and uses the original hydraulic system of a tractor.
一种液压双侧自卸四轮挂车属农牧机械技术领域，它用机车原有的液压系 统。
2
Therefore, the adjustment of small four-wheel tractor and trailer brakes simultaneously host should be to adjust the main trailer.