Replacing The Chain On A Garage Door Opener

Sometimes the cable will break if it is a combination chain and cable drive system.

Replacing the chain on a garage door opener.

Over time though this slack can increase or the gear and sprocket assembly can wear and the chain may pop off the sprockets. Chain drives a long chain pulls the door open and closed are the least expensive but they re loud. You can put the chain back on your automatic garage door opener using a simple adjustment mechanism. This garage door opener works by moving gears and metal parts together.

Chain driven garage door openers should have some slack in the chain for optimal performance. Replace the chain and cable assembly with the manufacturer approved replacement part. Screw drives a long threaded rod drives a mechanism that opens and closes the door are priced in the mid range. These are widely used since they are affordable and easily available.

Follow the steps in this repair guide and video to replace the drive chain and cable assembly in craftsman chamberlain and liftmaster garage door openers. If the gear and sprocket assembly breaks the motor runs but the door won t move. Garage door opener is very strong and seldom does the chain actually break. In this case the cable can be replaced fixing the problem.

How chain and belt drives work. Chain drive garage door opener uses a metal chain to open the garage door. Look to the end of the rail that hides the screw belt or chain to find the manual pull handle and the bracket to which it attaches. Read on to find out which garage door opener is best for you.

Located at the top of the motor unit the gear and sprocket assembly drives the chain that opens and closes the garage door. If the chain and cable assembly breaks the door won t move.