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