One must check the quality certification mark. Most of the good agricultural machinery products have obtained the certificates and badges issued by the relevant national technical appraisal departments. Such as "agricultural machinery promotion permit", "production license" and "3C (mandatory product certification) mark", such products are quality assurance, but should pay attention to identify the authenticity of the badge. Second, there must be complete random documents and spare parts. There are instructions for use, warranty certificates (warranty cards), product certifications, and spare parts and tools. Pay attention to the type and index of the instruction manual and the product number, such as the type and power of the engine assembled by the tractor. Don't forget the product certification, which is evidence of product quality. Some are hung on the machine, while others are packed in random spare parts. Careful inspection is required. Check the packing list to see if the spare parts and tools are complete. The instruction manual, three packs of voucher, and certificate of qualification must be complete, otherwise it will affect product use and after-sales service. These certificates are also the main evidence and basis for handling disputes according to law. Third, we must conduct a visual inspection. From the front, back, left, right, and in all directions, see if the entire machine is distorted. Whether there is rust or not, the sheet metal part is not smooth, there is no paint leakage, flow paint, castings have no pores, sand holes, burrs, plastic parts color, wall thickness is not uniform, tires, V-belt and other rubber No aging deformation, there is no leaking, oil spills. There must be a fixed nameplate on the machine tool. See the model on the nameplate is not the same as they need. Some look similar from the outside, the name is also very similar, but do not pay attention to buying back can not be used. Without a nameplate or site, it is basically not a product of a regular production company. Quality is hard to guarantee. Fourth, we must pay attention to safety devices. According to the national mandatory standards, safety qualified agricultural machinery products must have safety protection devices. Protective hoods are required for starting jaws, fans, pulleys, PTO shafts, exhaust pipes, chain drives, and cutter shaft assemblies. Foot pedals should be skid plates, and yellow or red safety warning signs should be affixed where they are easy to hurt. The throttle, the lever, and other places must have obvious operating symbols. Fifth, check the assembly quality. Check whether the parts and components of the agricultural machine are complete or not damaged; the installation is not very good. Formally qualified product assembly markings are very clear and obvious, such as timing gear assembly markings, piston top markings, etc. should be well-defined. Check that all tightening screws and nuts are tight and never use wire or nails instead of cotter pins. All rotations, transmissions and operating devices are flexible and have no locking or loosening. If you choose a rotary cultivator, it depends on whether the cutter shaft is flexible, whether there is obvious axial turbulence, stuck and abnormal sound, and the gear is flexible, no missing parts, no oil leakage. Rotary knife specifications, model is not the same. Sixth, we must do a good job test. Purchase tractors, agricultural vehicles, etc. Be sure to test. See if the engine starts shaking, the sound is not normal, is it easy to turn off, take the black smoke, gear, direction, brake, throttle is not so good; select the manual sprayer (applicator) is best to simply test the sprayer A test, such as adding water to the kit for spraying, to see the spray nozzle spray mist is not a small, uniform, non-dripping droplets, valves and connections can not "run, run, drip, leak." Finally, I would like to remind farmers that the following 4 points should be noted in addition to the above-mentioned methods when purchasing agricultural products: 1, buy agricultural machinery to have a fixed business site, permit, according to the complete agricultural machinery business units. To shop around, don't just bargain at cheap prices. Consider the product price, quality, and service. You can't just listen to one side. No agricultural machinery products with no production plant name, no production site, and no product certification can be purchased; farm machinery not adapted to local natural conditions and farming habits cannot be purchased; agricultural machinery products that have been eliminated cannot be purchased; farm machinery that is not known from sources cannot be purchased; The assembled agricultural machinery cannot be bought. Also, when buying an old farm machine, ask the seller for legal formalities (such as original invoices, driving permits, etc.). When purchasing expensive large-scale agricultural products, be sure to learn more about the products and products manufacturing enterprises. You can ask the farmers who have purchased the machines around you. You can also consult the technical staff of the local agricultural machinery management and promotion department. You can also go to the site to view the mechanical operations. situation. 2, ask for purchase invoices. Invoices must have a tax stamp and a financial seal, clearly indicating the purchase time, product name, quantity, specifications, model, price, etc. Do not save invoices because you do not reimburse them. Do not receive personally signed documents or receipts. 3, carefully read the product manual to understand product performance, use of maintenance, maintenance knowledge. Do not blindly operate. If you do not use according to the instructions in the manual, in addition to quality problems, according to the relevant regulations, you will lose the right to enjoy the "Three Guarantees" maintenance, and have no right to return. 4, find the problem and timely complaints. If you buy a farm machine that is fake or shoddy products or has quality problems that can be identified intuitively, you can directly go to the relevant department to make a complaint. If you can't intuitively identify, you must go to the relevant department for quality inspection in time. Do not miss the solution to the dispute. Good timing. Casino Dice,High Quality Casino Dice,Casino Dice Details, CN Eastony Industries (NingBo) Co., LTD. , https://www.eastony.com