How To Choose The Right Car Accessories
1. Check whether the trademarks of auto parts are complete, the quality of the regular product outer packaging is very good, the writing on the box is clear, and the overprint color is also very bright. The product name, specification, quantity, registered trademark, factory name, address, and telephone number on the box and bag have all expired. These manufacturers will also display their own logo on the accessories. Some very important auto parts, such as generators, electric fuel injection pumps, etc. Some operating instructions, certificates and inspections will be attached to guide users in this way and how to use and maintain them correctly. Therefore, it is necessary to read carefully when buying to prevent buying fake and shoddy products.
2. Check whether the size of the nodule is deformed. Some parts are easily deformed due to improper manufacturing, transportation and storage. Therefore, during inspection, you can roll the shaft component along the glass plate to see if there is light leakage at the connection between the component and the glass plate. When judging whether the clutch driven disc steel plate or friction plate is bent in this way, you can put the steel plate friction plate in front of you and observe whether it is warped. When buying an oil seal, the end face of the oil seal with a framework should be straight and round and fit the surface of the flat glass without framework. The outer edge of the oil seal should be straight and can be deformed by hand, and return to its original shape after releasing it.
3. Check if the end is flat. In the process of transportation and storage of auto parts, due to vibration and bumps, burrs, indentations, breakages or cracks often appear in the joints, which affect the use of parts, so pay attention to inspection when buying.
4. Check whether the surface of auto parts is rusty. Some qualified parts have some icing and increased finish on the surface. Therefore, the more important the parts, the higher the accuracy, and the stricter the rust and corrosion protection of the packaging. Therefore, when choosing to purchase, we must pay attention to inspection. If it is found that there are no changes in the uniform spots, spots or the shaft diameter that loses elasticity in the parts, the obvious turning tool lines on the surface should be replaced in time.