How To Repair Garage Door Opener Chain

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

How to repair garage door opener chain.

For many generations people rely on this type of door opener not only because it is easy to use but also because it is cheap and can easily be repaired when broken. Chain driven garage door openers should have some slack in the chain for optimal performance. 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. In this case the cable can be replaced fixing the problem.

Over time though this slack can increase or the gear and sprocket assembly can wear and the chain may pop off the sprockets. Chain drive garage door openers have a sprocket that is attached at the top of the motor. Sometimes the cable will break if it is a combination chain and cable drive system. A garage door opener chain may make a lot of noise when you pull it to open your door but it is one of the most reliable types of door openers ever invented.

You can put the chain back on your automatic garage door opener using a simple adjustment mechanism.