First, look carefully View Profile tractor is equipped with a random documents. When purchasing high-value or imported farm machinery, but also require the dealer to produce agricultural inspection department inspection reports and import customs formalities and product quality inspection such as single. Second, observe carefully observe the appearance of the exterior case tractor products. It is observed from both vertical and horizontal angle the entire machine without deformation, the whole appearance there is no shortage of paint, severe scratches, bubbling phenomenon. Metal material must be coated with anti-rust paint as a primer, covering machine parts, sheet metal parts should be smooth and so on. Third, check the assembling detailed examination of the tractor assembly situation. Check the farm around zero, the components are intact and correct, whether the installation specifications. All rotation, drive and operate mechanically flexible operation, without catching. Have a reliable security protection devices. Mechanical safety of all users is likely to cause harm to the place, should have safety protection device. At the site of the accident-prone, there must be a permanent warning signs. Fourth, the boot test at the time of purchase tractor boot test must be carried out. Understand the performance is good, whether the smooth functioning of the engine work, whether normal combustion and engine sound, direction, brake, throttle, etc. are sensitive and reliable, high-speed operation of agricultural machinery (thresher, grinder) to pay special attention to the balance of the drum machine with pressure vessel machine (sprayer, etc.) should pass the test, to know whether it's pump pressure reaches a predetermined value, the valve is working, piping and fittings for leaks and so on.