The difference between maintenance:
1, space: First of all, the space of the cart is large, and the accessories are also large. It only takes a little effort to repair it, and how to disassemble it will do. The cart has small space and few accessories, and it takes a lot of effort to disassemble it. Secondly, there is a strong correlation between the accessories of the cart. It is very likely that one accessory is broken and other parts will not work normally.
2. The difficulty of car maintenance: which car parts are broken and which can be repaired, the car needs to do a series of computer tests to determine the cause of the failure and the parts according to the computer test data.
3. The working principle of accessories is different: for example, large trucks all use hub braking. The principle of hub braking is to push the piston by hydraulic pressure, so that the brake shoes on both sides are close to the inner wall of the wheel to achieve the braking effect. Cars are disc brakes, also known as disc brakes. Disc brakes have been used in aircraft and industrial applications. By applying hydraulic pressure to the caliper, the disc brake makes the friction material of the caliper clamp the brake disc to achieve the braking effect.
4. Power-assisted: The cart is powered by a power-assisted pump, and the steering system of the cart generally adopts a hydraulic power-assisted steering system, which feels very light and can be easily operated with one hand, which is easier than the steering of most cars. The car is an electric power steering system. The microcomputer control unit determines the magnitude and direction of the steering force according to the signals of the steering sensing device and the vehicle speed sensor, and drives the motor to assist the steering operation.