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1. Stop the wiper blade in the middle position, that is, after the car is turned off, pull the wiper control handle toward the steering wheel, then gently lift it, wrap the steel frame with a cloth or something soft, and use a wrench or pliers to clamp the wrapped part toward the steering wheel. Twist a few times. After resetting, try scratching, is the abnormal noise a little smaller? If so, repeat it once until the abnormal noise is eliminated;
2. If it starts to sound when it goes down, it means that it has been twisted too far and needs to be twisted in the opposite direction. Until the abnormal noise is eliminated! If it sounds when going down, it means that the wiper frame is twisted downward;
3. Solution: let the wiper stop in the middle position and then pull it up, wrap the steel frame with a cloth or something soft, use a wrench or pliers to clamp the wrapped part up and twist it a few times, and then scrape it after resetting. Is the abnormal noise a little smaller? If so, repeat it once until the abnormal noise is eliminated. If it starts to sound when it goes up, it means that it has been twisted too far and needs to be twisted in the opposite direction. until the abnormal noise is eliminated;
4. Careful and patient operation is required. Don't use it too hard, so as not to "turn the deaf into a fool", it is best not to be afraid of trouble, remove the boneless wiper and operate it. If you don't have any experience in this area, go to a 4S store and ask them to adjust according to this principle, which will usually solve the problem. If it still rings, replace it with a boneless one.
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