Attention to the “primary , second, and third resistance”.
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As we all know, the current wiper on the market can be roughly divided into two types, one is the traditional intermittent wiper, which is also the one that is used most now. The wiper speed can be divided into three to four levels depending on the amount of rain. The adjustment is made; the other is the raindrop induction wiper used in medium and high-end models in recent years, and the wiper can automatically adjust the speed according to the rainfall .
A good wiper must have the characteristics of “primary, second, and third resistant”. “First resistance” means anti-corrosion; “Second strong” is strong in water repellency and strong in conformity with windshield; “three resistance” refers to heat resistance, cold resistance and acid and alkali resistance. At the same time, a good wiper should also be soft and not scratch the windshield. In addition, in order to ensure safe driving, the wiper should be replaced once every 6 months to 1 year .
When purchasing a wiper, first make sure which type of wiper and wiper connection is used in your car. Specifications can refer to the car manual, which has a clear identification of the wiper model, and the connection method is mainly to see how the strut and the wiper arm are connected, and some of the arms are fixed to the rocker arm with screws, and some It is locked with a male buckle; at the same time, it is necessary to check whether the rubber strip of the wiper is aging.
Method: Pull the wiper up and touch it with the finger on the cleaned rubber wiper. If the blade is aged and hardened, cracks appear, the rubber blade is not elastic, indicating that the wiper is unqualified; secondly, whether the wiper speed is tested Keep consistent and whether the wiper strut has uneven swing or slip. The wiper can be tested at different speed segments, especially if the wiper is kept at a certain speed in the “slow block” working state; finally, the wiper state is checked. If the contact surface of the rubber and the glass surface are not completely adhered, a wiping residue or a water strip or a matte surface is formed on the surface of the glass after wiping, indicating that the wiper is unqualified .
◊ How to troubleshoot ? ?
In order to replace the fuse on the other secondary line, the glass tube type fuse uses the wiper if the wiper motor emits abnormal noise, especially if the wiper motor makes a “beep” sound but does not rotate, indicating the wiper If the mechanical transmission part has rust or jam, immediately turn off the wiper to prevent burning the motor. If the wiper motor has no abnormal noise, the wiper does not work, mostly because the fuse burns out. At this point, just find the fuse of the wiper, and take it out and replace it with a new one. If you do not have a dedicated wiper fuse, you can use other objects instead. The chip fuse can be replaced by a small number of turns on the glass tube with the foil in the cigarette case.
If it rains, the wiper can’t completely clean the rain on the windshield, leaving traces of uneven wiping on the glass surface. In general, this is because the rubber part of the wiper hardens and the wiper cannot be close to the glass surface. Fit, or because the rubber on the wiper has scratches that cause unevenness in the wipe, resulting in residual dirt. At this time, it is best to buy a new wiper or rubber sheet (Topex focus on the wiper for 16 years). If the surface of the glass is foggy, fine water droplets, streaks or partial blurring when the wiper is working, it is due to the influence of oil film, dirt or car wax. Just clean the windshield and wiper blades .
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