How To Repair A Garage Door Opener Gear

Here are the eight most common problems along with the most likely repairs for each.

How to repair a garage door opener gear.

You can put the chain back on your automatic garage door opener using a simple adjustment mechanism. If you are in a bigger hurry you should be able to find a kit at a local garage door opener dealer. This is the plastic gear that comes in direct contact with the worm drive gear on the motor. Several components will need to be removed to get at the gear.

Located at the top of the motor unit the gear and sprocket assembly drives the chain that opens and closes the garage door. This is a video on how to change the gear sprockets in a craftsman garage door opener. 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. This diy repair guide explains how to replace the gear and sprocket assembly on a chain drive garage door opener.

Reattach the chain and tighten it to the proper tension see your owner s manual. If none of the following fixes seem to correct the problem you will need to consult the owner s manual or contact a professional. Amazon and other online retailers carry many popular gear kits ranging in price from about 18 to 30. Reassemble the motor assembly and place it back in the opener.

It can be a complicated repair but not impossible to do yourself. Over time though this slack can increase or the gear and sprocket assembly can wear and the chain may pop off the sprockets. This was a craftsman model 139 53976srt. 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.

Coat the gear teeth with new grease. Then install the helical gear assembly. Find the make and model of your garage door opener and then start shopping for a new gear kit. Garage door opener won t open all the way fix.

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. Required tools for this project. 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. You ll need to get a replacement gear set.

Test your repair with the garage door disconnected from the opener trolley. The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor.