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Summary: Learn how to install electrical garage doors with demos such as testing the reversal force in this free online video lesson.
Drew Finn is an expert in mechanical systems. He has a Masters Degree in Mechanical Engineering from Rensselaer Polytechnic Institute. He is a licensed engineer and licensed home...read more
" Hi I'm Drew Finn here for expertvillage.com we are going to show you how to install garage door opener today this is being filmed by Black Dog Video you could visit us at blackdogvideo.biz. Now we are going to check the reversal for if it hits the force does it reverse properly. As you are doing this test you could really damage the door if the setting is sitting correctly. So what I want you to do is lean over so you miss the electric eye cause obviously if you stand here it reverses by that. You lean over and you catch with the back of your hand. You want to be watching the top of the door if it starts to bend you want to immediately let go and let it go. You could kink the door if there is glass on the door you could break the glass. So you need to very careful with the test and if you are unshared back off the pressure setting so it reverses. Okay lets do it. I'm leaning over so I'm not on the way of the door. I'm watching up above and I have stopped it. It reverse the way that it is suppose to. With a moderate amount of force but not a lot so that could be good. We are all set with installation. Congratulation now you have a automatic working door."
eHow Article: Test Reversal Force for Electrical Garage Door Installation