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.

Tighten garage door chain.

Watch this video and see the professional at town country door llc demonstrates the. 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. A sagging chain is a result of normal usage of the garage door opener.

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. Using your wrench you can start to loosen up the adjusting nut on the side of your carriage closest to the opener head. Both adjustment types should be done with the door closed and disconnected from the opener using the emergency release.

Chain adjusts by shortening the chain itself. Then use the wrench to tighten this second nut clockwise until the chain is tighter but not so taut that it is completely inflexible. There are only a few ways that the chain can be tightened.