Replacing A Garage Door Opener Chain

Disengage the garage door from the opener by pulling down on the emergency pull cord to release the door trolley.

Replacing a garage door opener chain.

Located at the top of the motor unit the gear and sprocket assembly drives the chain that opens and closes the garage door. How to put a chain back on an automatic garage door opener step 1. The chain wraps around this sprocket as well as the gear and sprocket at the motor. Whether you need pulley brackets replacement chains or extensions our garage door chain kits come with the parts and pieces to help you get the job done.

These are widely used since they are affordable and easily available. Sprocket is at the end of the opener rail closest to the garage door opening. A new front sprocket costs about 150 200 include the labor to install it. Belt drive garage.

If you are not confident in your ability to diagnose the problem call a local garage door service company. Garage door openers are available with a chain drive screw drive or belt drive. Chain drives a long chain pulls the door open and closed are the least expensive but they re loud. 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.

Screw drives a long threaded rod drives a mechanism that opens and closes the door are priced in the mid range. If the gear and sprocket assembly breaks the motor runs but the door won t move. Take the garage door opener down. It uses a chain running assembly unit attached to tension springs that lift the garage door up and down.

Remove the chain and cable assembly. Garage door opener chain kits discover a wide selection of high quality garage door chain kits from liftmaster. Replace a broken gear and sprocket assembly with the manufacturer approved replacement part. Press the wall control button or remote so that the opener completes its close cycle and the sprocket on.

Use a step ladder to access the garage door opener s power cord and motor unit. Start your garage door replacement project by removing the old one. This garage door opener works by moving gears and metal parts together.