How To Repair A Garage Door Opener Gear

You ll need to get a replacement gear set.

How to repair a garage door opener gear.

Here are the eight most common problems along with the most likely repairs for each. Then install the helical gear assembly. Several components will need to be removed to get at the gear. When your garage door opener suddenly stops operating properly the cause of the problem is usually pretty simple to understand and the solution is usually quite easy.

Over time though this slack can increase or the gear and sprocket assembly can wear and the chain may pop off the sprockets. Test your repair with the garage door disconnected from the opener trolley. You can put the chain back on your automatic garage door opener using a simple adjustment mechanism. Required tools for this project.

This was a craftsman model 139 53976srt. It can be a complicated repair but not impossible to do yourself. Replace the main gear drive if the garage door opener makes a grinding noise but the door doesn t move your main drive gear is probably toast. Amazon and other online retailers carry many popular gear kits ranging in price from about 18 to 30.

In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor. Find the make and model of your garage door opener and then start shopping for a new gear kit. Reattach the chain and tighten it to the proper tension see your owner s manual. This is a video on how to change the gear sprockets in a craftsman garage door opener.

If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch. This is the plastic gear that comes in direct contact with the worm drive gear on the motor. It s one of the most common garage door opener repair problems there is. If you are in a bigger hurry you should be able to find a kit at a local garage door opener dealer.

Garage door opener won t open all the way fix. If none of the following fixes seem to correct the problem you will need to consult the owner s manual or contact a professional. If the gear and sprocket assembly breaks the motor runs but the door won t move. Located at the top of the motor unit the gear and sprocket assembly drives the chain that opens and closes the garage door.

The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor. Coat the gear teeth with new grease.