As a heavy transport tool, the trailer has a heavy load, a lengthy haul and a relatively elevated turnover frequency. Under the operation state of extreme load all year round, the demand for repair is greater, and the frequency of entering and leaving the maintenance point is higher than that of ordinary vehicles. However, the trailer maintenance market is mixed, long-term interests will inevitably breed some routine or hidden rules, so that the owners are impossible to prevent, even the elderly drivers are afraid to escape the trap. Today, Semi Trailer supplier specially collects and summarizes the dark scenes that trailer maintenance frequently encounters. I have to say that there are too many traps for trailer maintenance. 1, minor disease treatment, to replace and repair For the purpose of profit, some repair shops will give maintenance personnel strong performance, leading to the appearance of undesirable phenomena. Because numerous owners do not understand vehicle maintenance, maintenance personnel will deliberately exaggerate the fault of the vehicle. Occasionally it is clearly a minor fault, which can be solved by simple repair, but it is described as a fault that has to be overhauled, or even needs to be replaced with parts. In this way, the original may only need dozens of dollars to get things done, and finally was knocked hundreds or even thousands of repair shop income increased, but the owner is dumb loss. 2, steal a pillar, shoddy It is also essential to replace parts, such as choosing poor quality products, unsuitable products, or even using antique or fake parts. Once there is a problem after the replacement of parts, it is blamed on the owner of the diesel oil that is not excellent and thus on. In short, it has nothing to do with maintenance. If it is to treat non-local vehicles, it will be even more severe, directly replace the parts replaced by others, and even charge wild prices, directly as a one-off sale, a repair shop, mountains are high and waters are far away, and will not come back for a spare part. 3. Under the guise of "free" Nowadays, the maintenance shop also has a lot of "free" activities, such as "free maintenance", "free cleaning" and so on, but as the saying goes, there is no free lunch. The so-called "free maintenance" is simply a guise to attract owners to the shop. Then, when the "free" service is offered to the owner, certain parts of the vehicle will be reminded that the car is mainly repaired or needs to be replaced. Think back, is not heard before "××× a bit nasty ah, have to wash it", "×× wear extremely serious ah, can also be used for a period of time" and so on? For car owners, no one is willing to let their cars have problems, so they have to pay for repairs. 4. Overstating the "repair package" "Package" offers are also common these days and are one of the fastest ways for repair shops to make money. For some minor problems directly lion large opening, using the promotion of the so-called "maintenance package". Some "engine repair packages," which may sound fancy, may genuinely deal with minor problems such as valve oil seals and piston ring wear. Beginners are easily taken in if they don't understand. 5. Increased maintenance items This trap is also common. Some bad repair shops frequently use the maintenance list to blatantly pit consumers, the list of items greater than the actual operation of the project, the owner usually will not carefully check, or even if the check can not see what, finally spent a lot of money, for those obviously did not enjoy the project to buy a single. 6, the accident car was more repaired and additional injured. According to informed sources, some repair shops want to repair the accident car most, because they can not only make a lot of money through the accident car maintenance costs, but also won't bring any trouble to themselves. If there is any doubt, it can be directly pushed to the accident, and the owner is usually unable to refute. 7, the parts on the rebate Now the competition among parts manufacturers is more and more fierce, numerous parts will give certain rebates to repair shops as a reward for recommending their own products. In this regard, it is the same as gas stations selling glass water or urea liquid for cars. Therefore, when it comes to vehicle maintenance, don't blindly believe the brand of accessories recommended by the store, maybe it is merely recommended for commission and rebate. In addition, there are some repair shops, when the replacement of parts after the problem, will be with the parts business back and forth, the final bitter or the owner. 8. Use maintenance vehicles to cheat insurance Some bad repair shops find that the vehicle to be repaired has the space to cheat insurance, they will manipulate it, and then defraud the high insurance through their own relationships, causing adverse effects to the owners. 9. Acquaintances are more likely to be cheated As the saying goes, "acquaintances make excellent business sense," so some car owners think that "mixing it up" with a repair shop is the best way to avoid getting screwed. But in front of the interests, the so-called "acquaintances" pale. After watching these routines and traps, do you feel as if you are breaking out in a cold sweat when you think back to your past experience repairing cars? It is suggested that the owners generally should accumulate some knowledge of vehicle maintenance correctly, even if they will not start to repair, at least they can identify the repair shop, which is the truth, which is a lie. In addition, at the time of maintenance, if there are conditions, or stare at the side, to avoid being pit also entirely unaware. Of course, not all repair shops are "black shops", some strong, excellent reputation, regular repair shops can still be trusted, owners should pay attention to distinguish when choosing.