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How to Replace the Main Gear in a Garage Door Opener

It’s 6:00 AM and you are leaving for work. You press the garage door opener wall button and hear a subtle hum from your electric motor but the door failed to move. If your garage doors springs are intact chances are you garage door openers main drive gear has failed. You can easily inspect your drive gears by unplugging your garage door opener and removing the metal cover. The main drive gear is made of a white plastic that typically is the weak link in the opener. Many things can cause this gear to fail. Some causes of wear are Boca Raton:

o Garage door out of balance (Springs broke or in need of adjustment)
o Chain to tight a
o Old age
o Excessive use or high cycle
o Factory defect or lack of grease at time of manufacture

Replacing the large white gear is a low cost, quick and easy do it yourself repair as long as you have a few simple hand tools and follow the safety precautions. These gears can be purchased online in a variety of levels of components.

Before you get started it is important for you to have a list of the few simple tools needed to accomplish this project:
o Hammer
o Half inch wrench or adjustable wrench or pliers
o 3/8″ Socket or Nut Driver
o 1/4″ Socket or Nut Driver
o 5/16″ Socket or Nut Driver
o Flat Standard Screwdriver
o 5/32″ Punch or similar

~WARNING ~
To prevent possible SERIOUS INJURY or even DEATH from electrocution, ALWAYS Disconnect the power cord from your garage door from the outlet before proceeding with any inspection or repair.

Step #1
Make sure your garage door opener is unplugged. This step insures that no one unintentionally attempts to open or close the garage door while you are working on it or you do not accidentally activate the door while servicing it.

Step #2
Disconnect the door from the outer trolley by manually pulling the red disconnect rope and manually close the garage door.

CAUTION
The Garage door MUST be in the fully closed position during all repairs and inspection.

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