The trolley is responsible for pushing or pulling the opener arm along the chain so as to open and close the garage door.
Tighten garage door chain.
The one you re looking for is attached to a bolt found at the spot where the trolley or carriage connects to the rail.
Then use the wrench to tighten this second nut clockwise until the chain is tighter but not so taut that it is completely inflexible.
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.
Using your wrench you can start to loosen up the adjusting nut on the side of your carriage closest to the opener head.
Chain adjusts by shortening the chain itself.
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.
Watch this video and see the professional at town country door llc demonstrates the.
Continue to turn the.
Tightening your garage door chain is a simple matter of turning the right nut.