How to Replace the Main Gear in a Garage Door Opener  

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How to Replace the Main Gear in a Garage Door Opener  

Chain-driven garage door openers may experience numerous problems over the course of their lifetime, with shredded gears being one of the most common. The repair is fairly simple and inexpensive, though – it is a DIY job many people perform without the help of a professional. If you find the garage door opener no longer opens, check for worn gears first.  The following steps can help inspect and replace garage door main gears when they’re damaged. 

Prepare the Door for Inspection 

Disconnect the garage door opener from power sources before any work begins. Doing so prevents the risk of electrocution and other dangers. Nothing is more important than your safety and well-being when completing a DIY home improvement project. Next, pull the emergency release rope and shut the garage door. Remove the cover once this is done. 

After removing the cover, closely inspect the white plastic area for signs of damage and wear and tear. If you notice the wiring appears worn out or shredded, it is time to replace the gears. Gear kits are sold at hardware stores and online retailers for less than $50 and oftentimes for far less cost than that. The new kit should contain two new gears, new washers, and all items needed to replace the gear. 

Prepare for the Work 

You’ll need several tools to complete a garage door opener gear replacement. This includes a 1/4” nut driver, a 3/8” socket, 1/8” Allen wrench, 5/32” punch, flathead screwdriver, 5/16” socket and extension, and a hammer. Loosen the circuit board and the chain next, followed by removal of the gear assembly.  

Reassemble the Gears 

On average, expect the entire process to take about 30-minutes to complete. People without experience may find that it takes a bit longer, but it should be fairly easy. Don’t rush through the job and make mistakes. It makes far more sense to take your time and do it right. 

After removing the gear assembly, replace it with the new gears and items in your kit. Be sure to follow all instructions provided with the owner’s manual to ensure the gears in the opener are correctly replaced. It is vital that you lubricate the gears before installing to prevent damage. Most kits contain oil so this is easily completed. 

Once this is done, you need to simply tighten the screws and the chain, replace the cover on the garage door opener, and plug in to power.  You should now have a completely efficient, properly working garage door opener. 

When Trouble Exceeds Gear Problems 

If you notice the gears are not worn out, there is likely something bigger causing the trouble. It’s a good idea to contact a company for professional inspection and repair. A1Garage.com in Paradise Valley AZ offers emergency services open 24 hours a day so you can call them whenever there is a problem. Replacing the unit may be the best option of all and a professional can get this done.