The front drive wheel system is widely used today. First of all, it can reduce the cost of excavators, which is why many car manufacturers now use this drive system. Front-wheel drive (FWD) is much cheaper than rear-wheel drive (RWD) in terms of manufacturing and installation. It does not pass through the drive shaft under the cockpit, nor does it need to make a rear axle housing. The transmission and differential are assembled in one housing, so that fewer parts are required. This front drive wheel system also allows designers to more easily install other components on the bottom of the vehicle, such as the brake system, fuel supply system and exhaust system. Another advantage of the front-wheel drive of construction machinery is to reduce the weight of the vehicle. Reducing vehicle weight can improve acceleration, braking and fuel economy. Because the driving wheels of a front-wheel-drive car bear the weight of the engine and drive axle, it can increase the adhesion of the driving wheels, which will be of great help to cars driving on wet and slippery roads. The advantage of the front drive wheel of construction machinery is that it can have a large indoor space, and the cab will not have a large bulge due to the drive shaft passing through.