The receiver would listen for the radio signal then open or close the garage depending on the door position.
Garage door opener drive mechanism.
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This type of drive system runs along the rail and wraps around a sprocket located on the top of the opener.
The transmitter would transmit on a designated frequency.
The first garage door opener remote controls were simple and consisted of a simple transmitter the remote and receiverwhich controlled the opener mechanism.
The drive mechanism is a device which keeps your garage opener turning and lifts the steel bar that keeps the door closed when it is not being used.
The machine also slows a door in transit preventing it from crashing to the garage floor.
If this part of your screw drive garage door opener becomes damaged it can be difficult to repair or replace without removing the whole mechanism.
Today s high strength drive belts will handle the weight loads of most single or double residential garage doors.
The belt ends are joined at the drive trolley with a threaded clip that can be adjusted to keep the belt tight.