The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor.
The chain broke on my garage door opener.
Garage door opener won t open all the way fix.
There are a number of reasons why the motor will run but the chain doesn t move.
Documenting how i repaired the garage door.
Getting out of the car at the end of a long day to open the garage door can be frustrating especially when the automatic garage door opener sounds like it s working but isn t.
Garage door opener is very strong and seldom does the chain actually break.
It can be quite easy to find the solutions needed to repair your garage opener.
Chain drive garage door openers have a sprocket that is attached at the top of the motor.
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.
Your garage door opener stopped operating as it should.
Watch this video and see the professional at town country door llc demonstrates the.
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.
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.
In my article about garage door opener troubleshooting i help you to correct the most common problems without having to consult either your owner s manual or an expensive professional.
Chain driven garage door openers should have some slack in the chain for optimal performance.
You can put the chain back on your automatic garage door opener using a simple adjustment mechanism.
A sagging chain is a result of normal usage of the 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.
Over time the sprocket s teeth can wear and the chain may jump or skip when the opener raises the door.
Having an automatic door opener in your garage is a great convenience but you have to give the opener and all its parts regular.
I am not a professional.