Wheel loader is a kind of earth-rock construction machinery widely used in highway, railway, construction, port, mine and other construction projects. It is mainly used for loading and unloading bulk materials such as soil, sand, lime and coal, , Hard soil for light shoveling operations. Dressing different auxiliary work device can also be bulldozing, lifting and other materials such as timber loading and unloading operations. In roads, especially in high-grade road construction, small loaders are used for excavation and excavation of roadbed works, aggregate and loading of asphalt and cement concrete yard. In addition, it can carry out operations such as soil propelling, leveling the ground and towing other machinery. Due to its advantages of fast working speed, high efficiency, good maneuverability and light operation, the small loader has become one of the main types of earthwork construction in engineering construction.