I understand the basics of how a garage door works – the opener motor is assisted by the spring’s stored energy, otherwise the door would require a *much* larger motor to lift it.
But, some of these springs really look monstrous, and I’m wondering – how is their stored energy controlled? How do we ensure the spring releases just enough energy to assist the motor, and doesn’t just launch the door into orbit?
In: 5
The springs are tightened just enough that their tension overcomes the weight of the door. The door should stop at around 2ft from the floor with the motor disconnected, if I recall. The spring tension is held by setscrews on the shaft above the door.
We replaced our old wooden door with a newer fiberglass one and had to adjust the spring tension since the new door was lighter.
Latest Answers