This video will show you how to easily and successfully adjust your garage door chain tension. Click on the BELL next to the subscribe button to get notifications when Frosty Life uploads a new video.. If you find your garage door chain sagging, you may need to adjust the chain to avoid issues in the future. Ignoring chain issues could result in problems in the future, so we have a few tips to help you get started. In this article, you will learn how to tighten garage door chain and avoid problems in the future.
Learn how to adjust the chain on your garage door opener for smooth operation, safety, and optimal performance.. Below are the steps for adjusting the chain tension, if needed: Run the opener closed using the door button or remote control. Disconnect the garage door from the garage door opener. If you have square rail opener, pull the red manual release rope straight down. If you have a T-rail opener, pull the red manual release rope straight down and then back toward the motor unit. This will allow you.