Now all kinds of fake and shoddy goods are flooding the entire market. Even the accessories of the front four and eight trucks are no exception. The use of inferior accessories in vehicle repairs and repairs is a very dangerous thing. The following Xiaobian is a summary for everyone. How can we buy high-quality accessories for the top four and eight trucks?
1. Observe the logo of the accessory logo. The quality of the top four and eight truck accessories produced by the regular manufacturers can be clearly seen on the top, with overprinting and clear writing. And above the packing box and the packaging bag, there should be an accessory product name, quantity, registered trademark, model name, manufacturer name, and contact information. Some of the more important components of the first four rear eight trucks, such as fuel injection pumps, generators, etc., are equipped with instructions for use and certification, etc., so as to better guide the user in the correct use and maintenance. Therefore, when purchasing the first four rear eight truck accessories, this must be noted.
2. Observe if the accessory is deformed. Some parts of the first four rear eight truck parts are not properly handled during the process of production, transportation, and storage, which may cause deformation. Therefore, be sure to check before buying, when buying the front four rear eight clutch friction plate and driven plate steel, you can first lift the friction plate and steel to see if there is warping . When purchasing shaft parts, you can make it roll along the glass plate and observe whether there is any bending or light leakage at the joint between the glass plate and the part. When purchasing an oil seal, the end face of the oil seal with the skeleton should be a round shape, and can be attached to the flat glass without deflection.
3. Observe whether the appearance of accessories is bright. The appearance of the four-to-eight-truck spare parts that are generally qualified has a certain degree of finish. The more important the four-to-eight-truck parts, the higher the precision and finish will be, and the anti-corrosion and anti-corrosion of the packaging will be Strict comparison. If it is during the procurement of the four-eighth truck accessories, you should immediately replace the new ones when you see signs of mildew and rust on the accessories.
4. Observe the accessory shield. It is not just the four-eighth-truck. All other motor vehicle parts are pre-coated with a protective layer when they leave the factory. For example, bearings and piston pins are protected with paraffin. The outer surface of the liner is coated with rust preventive oil and is wrapped in a wrapper. If it is found during the purchase process that the seals of the fittings are damaged, paraffin wax and rust preventive oil are lost, they should be replaced immediately.
5. Observe whether the rotating part can be flexible. In the process of buying the rotating parts assembly of the four-to-eighth truck oil pump, etc., it is necessary to use the hand to rotate the lower pump shaft. Under normal circumstances, there will be no jamming. When buying a rolling bearing, use one hand to support the inner ring of the cylindrical bearing and use the other hand to rotate the outer ring. At this time, the outer ring should be able to rotate quickly and gradually start to stop. If the rotation of the rotating part is inflexible at this time, it is proved that there is a deformation and corrosion inside the part, so it should not be purchased.
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