How To Replace A Belt On A Garage Door Opener

The spring nut is under heavy tension.

How to replace a belt on a garage door opener.

Screw drives a long threaded rod drives a mechanism that opens and closes the door are priced in the mid range. This is dangerous to anyone standing close or for vehicles driving under the door. The garage door opener belt is an important part of the workings inside the opener when the belt is not working correctly the door will slip fail to open or come crashing down. Garage door openers are available with a chain drive screw drive or belt drive.

Explore liftmaster garage door opener belt kits. Find replacement belts trolley kits tensioners sprockets pulley brackets idlers caps covers and more. If you need to replace the belt in your belt drive garage door opener you might be surprised by how simple the task is as long as you have a guide to follow be it the one below or the one from your actual owner s manual you should not have too tough of a time repairing or replacing the belt. Remove the belt from the garage door opener.

Using channel lock pliers carefully squeeze the spring on the spring nut and trolley shaft to create slack in the belt. Remove the screws from the belt cap on the motor unit and pull the belt cap off. Unhook the trolley connector from the front of the trolley and then release the spring tension.