Garage Door Opener Chain Broke

Work with the door down.
Garage door opener chain broke. 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. A garage door can be lifted but it is going to require some muscle to get it up. Be sure to check to see if your garage door opener offers a battery backup so you can easily access your garage if your home loses power. If the spring is broken the door is dead weight.
Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products. This garage door opener works by moving gears and metal parts together. 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. Garage door is jerky when going up and down.
Belt drive garage openers use a rubber belt to open the garage door. In this case the cable can be replaced fixing the problem. This video from sears partsdirect shows how to replace the gear and sprocket assembly on a chain drive garage door opener. We design and engineer residential garage door openers commercial door operators and gate entry systems.
It uses a chain running assembly unit attached to tension springs that lift the garage door up and down. That way you won t lose a finger if your unsuspecting housemate hits the remote button while you re working. The gear and sprocket assembly dri. The counterbalance spring is what lifts the garage door not the garage door opener.
Like a chain drive the belt drive operates by moving the rubber belt. You can put the chain back on your automatic garage door opener using a simple adjustment mechanism. Over time though this slack can increase or the gear and sprocket assembly can wear and the chain may pop off the sprockets. Sometimes the cable will break if it is a combination chain and cable drive system.
If your chamberlain garage door opener trouble is a broken door spring and you pull the emergency release cord while the door is in the raised position the door could come crashing down. Chain driven garage door openers should have some slack in the chain for optimal performance.