When it comes to airbags, car owners know its importance. However, few people have noticed that the airbag has its own characteristics, that is, one-time, once the airbag is ejected, it cannot be recovered and it can only be replaced with a new one. This involves the expense of replacing the airbags, and many used cars are discounted at this point. Safety is no small matter. To buy a used car, it is very important to check the airbag. Below, the first car network will give you some information about used car airbags. Airbag normal condition Each time the vehicle is started, the SRS warning light on the instrument panel will light for about 5 seconds to indicate self-detection. When the computer processor confirms the error, the warning light will automatically go out. If the warning light keeps flashing, it indicates that the airbag has been faulty and should be repaired immediately. Carefully check the airbag The air bag assembly (inflatable bag) is old and new, whether there is oil, dust, and whether the airbag itself is damaged. Normally normal airbags are new after they are ejected. If they are present, they are likely to be forged. In addition, it can be observed whether the fixing screw of the airbag has loose marks. Then, the owner of the vehicle is asked to inquire about other people and others in the moment of the accident, and whether or not doubts can be found through observation. When a collision occurs in the vehicle and the airbag is opened, the airbag must be flushed with the airbag cover. This makes it necessary to replace the airbag cover together with the cover plate during the subsequent maintenance. This will cause the newly replaced cover plate and other components in the control system to form a color difference or It is not the same as the old and new, and all bad quality airbags are more likely to bring about the mismatch in the assembly, resulting in uneven or mismatched gaps. Check seat belt In most cases, the airbag pop out of the car will be accompanied by the locking of the seat belt. Pull the seat belt to check if it is locked. If the air bag pops up the seat belt is not locked, it is likely to be counterfeit. Practical professional equipment to detect airbags Using professional equipment to test the airbag computer to determine whether there is collision data and collision time, to determine the authenticity of the airbag. The quality of airbags identified by data is more persuasive. Smell the airbag During the airbag deployment process, both the explosion of the detonating substance and the chemical reaction of the nitrogen-generating substance generate a pungent odor similar to the smell of gunpowder. For airbags that have just been probed, the authenticity of the airbags can be verified by smelling the odors. Airbag use precautions Do not prevent objects around the airbag during normal driving to prevent the passengers from being injured when the airbag detonates. In addition, some owners who like to modify do not arbitrarily modify the airbag circuit and components to affect normal operation. In short, airbags play an important role in our driving safety. We must pay enough attention to it so that it can play its due role.
Oil pumps are forced feed to oil to each friction surface under raising oil pressure and ensuring engine oil capacity.
Oil pumps are divided into Rotor Oil pumps and Gear Oil pumps. Most of automotive oil pumps are gear pumps. When the car`s engine begins to work, the engine shaft drives the oil pump gear. In high speed operation, it forms a strong positive and negative pressure around the internal and external of oil pump, and the oil is sucked by oil pump, pressuring to the engine parts, so as to realize a kind of compulsory lubrication. And oil pump, here, increase the internal and external pressure difference. The faster the speed, the greater the pressure, and the lube oil floe is faster, more comfortable car run up.
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