Wipers are common accessories on the car, and sometimes after a long time, there will be problems such as unclean and abnormal noise.
Some friends may choose to change the wiper directly, and some friends want to repair it themselves but don't know how to do it, so today the spare tire will share with you the problem of wiper repair.
<h1 class="pgc-h-arrow-right" data-track="55" what to do if the wiper is not clean</h1> >
The wiper has water marks, which is mostly a problem with the rubber strip
The most common case of unclean scraping is that after the wiper is scraped, it will leave water marks on the glass.
Li Jun mentioned in the "Study on the Improvement of the Purity of The Wiper Blade of the Windshield Windshield Windshielder" that the correlation between the unclean wiper scraper and the durability and aging resistance of the rubber strip reached 162, ranking among other influences on the relevance of the wiper blade.
That is to say, the wiper is not clean, it is likely to be due to the contamination, aging, damage and other reasons of the rubber strip.
For example, the rubber strip naturally ages, the dust that falls on the glass, sand, etc. pollute the wiper, or the wiper blade loses its elasticity.
There is pollution on the wiper, so you can gently wipe it with a wet towel and paper towel to wipe the tape clean.
However, if the wiper is used for more than a year, it is possible that the rubber strip will harden, have gaps and cracks due to the exposure to the rain, then the wiping strip will make some small sand and gravel embedded in the gap, and it will be more difficult to scrape clean when scraping water.
It's like walking with small pebbles embedded in the grooves in the soles of shoes, which is very uncomfortable to walk.
In this case, there is also a way to solve it by yourself, that is, use more than 3,000 mesh sandpaper to polish the rubber strip back and forth, and polish the gap to level it. Sandpaper can be bought in hardware stores and is not expensive.
However, do not use too much force when grinding, and this method cannot be used too many times, because the rubber of the wiper strip is made, and excessive polishing will destroy the outer layer of rubber surface, and the water will produce an abnormal sound.
Damage to the wiper blade spring causes the scraper to be unclean
If the wiper blade is not clean, it may also be caused by spring damage. The wiper's ability to scrape water is related to the pressure of the scraper arm.
Tian Yong and Fang Ying mentioned in "Research on the Structure and Durability of Automobile Wiper Blades" that wiper blades cannot completely scrape off the water on the glass, but smooth the rainwater on the glass surface through the scraper to form a uniform water film layer, allowing light to pass smoothly without refraction and deformation bending.
That is to say, if the pressure of the scraper arm is uneven, the water film formed is uneven, which is what we often call the scraping unclean.
Just like when rolling the dough, it is generally rolled with a round stick, if you press it by hand, the thickness of the dough will be uneven, too thick places are not easy to cook, too thin places are easy to boil.
There is a spring where the wiper arm and the body are linked, and the spring may be loose and rusty after a long time, resulting in a change in the pressure of the wiper arm, uneven distribution, and the wiper will not be clean.
The front windshield itself is dirty, and it is useless to change the wiper
There is also a case where the scraper is not clean, because there are some foreign bodies and oil films on the front windshield itself, which is not related to the wiper.
For example, some cars parked under trees may have bugs crawling over and bird droppings falling; or driving to a place with more sand and dust, fine silt and sand attached to the front windshield, which becomes an oil film after rain.
Just like when we usually cook, the sugar accidentally spilled out, a little sweep can be cleaned up, if the sprinkled place just has water, the sugar will become sticky, more difficult to clean.
If you look closely at the front windshield, if there is a rainbow-shaped mark on it, or if it feels grainy when you touch it with your hands after getting wet, it means that the frontshield is dirty.
If you want to deal with this situation yourself, you can buy a bottle of glass degreasing film agent and clean the front windshield.
<h1 class="pgc-h-arrow-right" data-track="58" > when to change the wiper</h1>
Generally, the wiper strip is made of rubber, and it will naturally age after half a year to a year.
If the tape has obvious cracks, or if the method described above has not worked after trying the spare tire, you can change to a pair of wipers.
If friends want to change the wiper, it is recommended to understand the spare tire home of the natural A-class rubber boneless wiper, the outer coating of the rubber is Teflon material, there is a relatively stable heat resistance and cold resistance, summer long-term exposure to the environment is not easy to deteriorate, can improve the durability of the wiper.
Moreover, Teflon coating is not easy to get wet or easy to adsorb fine sediment, which can also reduce the damage of sediment attachment to the wiper while effectively scraping water.
In addition, the steel sheet material is also used, which can withstand long-term rain, tough and not easy to deform, and prolong the service life of the wiper.
If you are interested, you may wish to use the link below to find out. Hardy and sun-resistant, scraping is clearer.
Spare tire said car wiper order remarks [brand + model + year] warranty half a year 1 pair of installation ¥39 purchase