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4 Things to Know About Your Garage Door

Understanding how your garage door works and the choices you have will give you a new respect for that great, big door that goes up and down. Here are four things to know about how it works.

#1 The Motor. Usually, garage door motors are a half horsepower, 6-amp motor that plugs into a 120-volt outlet. The motor not only raises the door; it slows the door as it lowers so it doesn’t crash land against the garage floor.

#2 How does the door move? There are three devices to choose from. Each of these devices is connected to the trolley to drive the door. The drive mechanism can be a belt, a chain or a screw. A belt mechanism is both the quietest and the most expensive. It has teeth on one side that allow the gear to raise and lower the door. Another choice is the chain. It’s like a big bike chain. It’s the least expensive but makes the most noise. A screw is a continuously threaded shaft that “reaches” out and grabs the door to raise and lower it. This choice is middle-of-the-road – not too noisy and not too expensive. However, it needs to be lubricated!

#3 The Track. Usually called a Drive Guide or T-rail. This is the guide that shields the chain, belt or the screw and connects this mechanism or operator to the trolley that is connected to the door. All together they make your door go up and down!

#4 How is it powered? Your garage door is powered by an Inverter and a Battery. In most garage door systems, this lets smaller and more efficient motors do the work by converting AC current to DC current. This also charges a battery that works as a backup system so you can go in and out even when the power is off.

Your garage door does a lot of work for you! On average, a garage door opens and closes about 1500 times a year. When you understand its parts, you should also understand the importance of keeping them well-maintained. Have a safety and maintenance check by a technician from a licensed garage door repair and replacement company. It will keep your door working and keep you and your family safe.

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