How to Pick a Harness for a Trailer

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Part of the video series: How to Maintain a Trailer

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Summary: Learn how to choose an appropriate harness for your trailer to keep it in good working condition in this free trailer maintenance video.

Views: 720 | Tags: maintenance, up, driving, parts, cars, trucks, pick, lights, maintaining, trailers, hitches, pulling, towing

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About the Expert

Albert Hedgepeth Albert has enjoyed outdoor activities most of his life, participating in long distance hiking trips, scuba diving, horseback riding, caving, and whitewater ra... read more

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Video Transcript

How to Pick a Harness for a Trailer

Hi, I'm Albert Hedgepeth with Expert Village. Today we're going to talk a little bit about trailer maintenance. Let's talk a little bit about the electrical harness and some things that you ought to look at to maintain that so that it works properly. First of all, the electrical harness usually connects to the back of the truck. You can buy adapters if you have braking systems that deal with electronic brakes that it will disengage whenever you're in reverse. These adapters also send signals to your brakes, to your turn signals and to your side reflectors that are all along the trailer. Once again, warning people about the decisions that you're making with the vehicle and how you're moving the trailer. Checking the wiring harness is a pretty basic thing. Once of the first things you want to make sure is that the trailer and the wiring harness can move freely and not disconnect the cable while the trailer is moving on an axis. So you want to leave some slack whenever you connect it to the back of the truck. Most of these are very simple pin connections. If you need adapters to run your braking system, or to adapt to the plug that's on your car, you can usually pick these up at a basic automotive store or a marine center. Another thing that you're going to want to look at in the wiring harness is to make sure that the cable covers are on the cables so that they don't get cut. Once they actually enter the trailer frame, they're pretty well protected due to the steel. But its a good idea to walk along the edge of the boat and wherever you see exposed wire to check it occasionally. This is just going to guarantee that the wires haven't been cut, stripped and that the grounds are actually attached to where they should be. This is going to help the trailer operate properly and will keep you guys safe on the road.