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Master this 7 allows you to select auto parts easily

by:Sinpo     2020-08-16
In the auto parts purchasing, we often for accidentally bought the fake and shoddy parts and don't share parts. So, how do you buy a share of qualified parts? Let's have a look at the detailed steps together! 1, the specifications are most appropriate auto parts has a regulation model and technical parameter. Such as electrical equipment of choose and buy when, should pay attention to check and be in parts of voltage and power are consistent; Models and perimeter belt of choose and buy, should be paid attention to. 2, whether trademarks complete packing for authentic products of good quality and packing box on the handwriting is clear, bright colours. Some important components such as generator, distributor, fuel injection pump, etc. , also equipped with instruction manual, certificate of approval and chapter inspectors, to guide the user the correct use of maintenance. When the choose and buy, should carefully identify, in case to buy fake and inferior products. 3, the deformation of the geometry size for some parts because of improper manufacture, transport, storage, easy to deformation. Check, axial parts along the glass plate rolling can be a circle, parts and glass plate joint have to judge whether light-leaking bending; Clutch platen steel or friction slices of choose and buy, can lift, friction plate of the steel in the eyes to observe whether the buckling; When the choose and buy oil seal, with skeleton oil seal face should be positively circular, with flat glass joint without warping; Frameless oil seal edge should be regular, with hand make its deformation, should be able to recover after let go. Should also pay attention to when the choose and buy all kinds of pad, check the geometry size and shape. 4, see if combining site leveling parts in the process of handling, storage, due to vibration, knock against, often in combination with the parts have burrs, indentation, breakage or crack, affect the use of the parts. When the choose and buy should pay attention to check. 5, see parts surface rustily qualified spare parts surface, there are both certain accuracy and polished finish, the more important parts, precision is higher, more rigorous rustproof packaging. When the choose and buy should pay attention to check, if found parts with rust spots, mildew spots or rubber parts cracked, loss of elasticity, or shaft neck surface has obvious pattern of the lathe tool, must be paid to the exchange. 6, the protection surface layer are in good condition when most of the parts in the factory are coated with protective layer. Such as piston pin, bearing bush with paraffin wax protection; Piston ring and cylinder liner surface rust-proof oil and paper package; Valve, piston, etc after immersion rust-proof oil encapsulated with plastic bag. When the choose and buy, if find seal set of damage, loss of wrapping paper, rust-proof oil or paraffin erosion, should be returned. 7, the glue joint parts with and without loose by two or more than two parts, accessories parts is through being connected between or welding processing, plastic molding, between them are not allowed to have loose phenomenon, such as oil pump plunger and adjust arm through a combination of installation; Clutch yi is riveting combination with sheet steel, the friction plate and sheet steel is riveting or glue; Paper filter filter skeleton and the filter paper is glue joint; The thrum of the electrical equipment is welded together. If found loose when the choose and buy, should be change.
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