How to do a Garage Door Motor Installation

A garage door that comes with a garage door motor installation is usually controlled by a remote.  Without it, you have to manually operate the door.  
Before learning about garage door motor installation, you have to understand the three types of motors. A screw-driven motor uses a threaded-steel rod to lower and raise the garage door. This emits the least noise when it is being lubricated properly. Another factor that contributes to this noise level is its plastic-lined tracks. This motor is ideal for garage owners who want low maintenance. Its only disadvantage is that it moves the garage door slower. The most common motor is the chain-driven type. It opens the garage door by using a chain that is attached to a metal trolley. Garage doors with hidden chains usually have noise reduction. Although it is the most economical out of the other motors, this one can be somewhat noisy if not properly maintained. A belt-driven motor opens the garage door by using rubber belts, thereby eliminating metal-to-metal contact. It makes the least noise among the other two motors. Its only setback is that it is usually expensive.
Now that you know the three types of motors, here is how you can do a garage door motor installation if you want to repair your garage door’s motor.
1. To begin a garage door motor installation, place the garage door in a closed position. You have to unplug the motor so that the door will not move as you are repairing.
2. Use a wrench to loosen the chain, screw, or belt mounted on top of the trolley. Remove the cap that holds the screw, chain, or belt on top of the motor. Disassemble the chain, screw, or belt by taking it off the motor. Remove 3 or 4 screws that hold the motor’s cover in place.
3. Once you remove the motor’s cover, check its motor gear. The motor gear looks like a white wheel inside the motor. The plastic clip that holds the motor gear in place should be removed.
4. Dislodge the limit switch assembly by pushing the brackets on its sides. Remove the RPM sensor out of the way after disconnecting it from where it is held with the wire.
5. Remove the capacitor from the motor by disconnecting the red, white, and blue wires. Remove the 4 screws that attach the motor assembly to the motor’s frame. Then dislodge the motor assembly from the motor. The motor gear, along with the sprocket, can be removed from the motor as well.
6. Attach the new sprocket and the new motor gear to the motor by fastening them with 3 screws. Using the 4 screws, attach the new motor assembly to the motor.
7. Use the red, white, and blue wires to attach the capacitor to the new motor assembly. Place the RPM sensor back in its original place after putting the limit switch assembly back. The other wires, which are previously disconnected, should be reconnected again. Then bolt the motor’s cover in its former place.
Now that you know how to do a garage door motor installation, do not forget to lubricate the motor’s inner moving components before switching the garage door on.