Fixing A Garage Door Opener Chain

How to fix a garage door chain drive sprocket.

Fixing a garage door opener chain. Chain drive garage door openers have a sprocket that is attached at the top of the motor. If the door stalls or. Garage door opener is very strong and seldom does the chain actually break. Garage door opener won t open all the way fix.

Over time the sprocket s teeth can wear and the chain may. Over time though this slack can increase or the gear and sprocket assembly can wear and the chain may pop off the sprockets. To repair your broken garage door opener chain here is what you should do. Before you do any repairs you need to know what is wrong with your door opener chain.

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. If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch. You can put the chain back on your automatic garage door opener using a simple adjustment mechanism. Garage door openers have an adjustment screw that controls the closing force the pressure with which a door is allowed to descend before the motor switches off when the door reverses before it even hits the floor this is often because the close force.

Chain driven garage door openers should have some slack in the chain for optimal performance. Sometimes the cable will break if it is a combination chain and cable drive system. Two possible problems can lead to a garage door reversing before it even touches the floor. In this case the cable can be replaced fixing the problem.

Garage door reverses before hitting the floor. The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor. Once you ve replaced the worn door components check the garage door opener chain. So start by tightening the chain find the procedure in your owner s manual.

Step 1 diagnose the problem.