How Windshield Wipers Work

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Windshield wipers have a motor with rods going to the wiper arms which are connected to wiper blades. Find out how a windshield wiper motor makes the arms move with tips from a certified master mechanic in this free video on car accessories.

Part of the Video Series: Car Accessories & Maintenance
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Video Transcript

Good afternoon, my name's Tom Brintzenhofe, certified master mechanic, out of Redding, Pennsylvania, and today we're going to talk a little bit about how windshield wipers work. Now, it's a fairly relatively simple design. You have a few components, and we will start from the end. We have a wiper motor, which unfortunately you can't see because it's back behind this cover. You have two rods comin' across from from the motor, one goin' to this arm, one goin' to this arm. That's why they call it the wiper transmission. And then, you have your two wiper arms and your wiper blades. Now, how this process works is you you'll have a a wiper motor in here drivin' this transmission that we talked about here. As this wiper motor's goin' around in a complete circle it's hooked to a a rod that's going to move, and these two two white, this transmission in here is going to move on two different ways, because you can't have em, unfortunately, movin' the same same rod cause' you won't get em' goin' in the same direction. But, as this one comes around it's going to move action similar to this, and as it's turnin', as you can see the action, it's going to move that arm, both of them, in in in in synchronization here. As it comes back around it's going to move, and you're going to see this arm as it makes that full circle, and it's also going to do the same thing over here. That's about the simplest way I can tell you how windshield wipers work.

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