Both adjustment types should be done with the door closed and disconnected from the opener using the emergency release.
Tighten garage door chain.
A sagging chain is a result of normal usage of the garage door opener.
The one you re looking for is attached to a bolt found at the spot where the trolley or carriage connects to the rail.
Using your wrench you can start to loosen up the adjusting nut on the side of your carriage closest to the opener head.
Twist the outer nut clockwise with the wrench to move the trolley and tighten the chain.
There may be an adjustment linked to the chain or an adjustment to the length of the door opener track.
Watch this video and see the professional at town country door llc demonstrates the.
Slowly turn the outer nut as you watch the slack on the chain above your chalk mark.
Turn it counterclockwise holding the other nut in your hand to prevent it from turning.
Tightening your garage door chain is a simple matter of turning the right nut.
There are only a few ways that the chain can be tightened.
Continue to turn the.