Slowly turn the outer nut as you watch the slack on the chain above your chalk mark.
Tighten garage door chain.
There may be an adjustment linked to the chain or an adjustment to the length of the door opener track.
Then use the wrench to tighten this second nut clockwise until the chain is tighter but not so taut that it is completely inflexible.
Twist the outer nut clockwise with the wrench to move the trolley and tighten the chain.
Continue to turn the.
Chain adjusts by shortening the chain itself.
Both adjustment types should be done with the door closed and disconnected from the opener using the emergency release.
Turn it counterclockwise holding the other nut in your hand to prevent it from turning.
There are only a few ways that the chain can be tightened.
The one you re looking for is attached to a bolt found at the spot where the trolley or carriage connects to the rail.
Tightening your garage door chain is a simple matter of turning the right nut.
A sagging chain is a result of normal usage of the garage door opener.