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 a garage door chain.
How to tighten your garage door chain.
Then use the wrench to tighten this second nut clockwise until the chain is tighter but not so taut that it is completely inflexible.
Too much tautness in the chain could lead to it breaking.
There s usually a piece of rope hanging from it which is used to disengage and re engage the opener.
Thankfully garage door manufacturers have included a part in their designs that can help you tighten your chain and stop the chain from slapping against the rail as it opens and closes your garage.
This will cause the nut to back away from the door and toward the opener.
Watch this video and see the professional at town country door llc demonstrates the.
Tightening your garage door chain is a simple matter of turning the right nut.
The trolley is responsible for pushing or pulling the opener arm along the chain so as to open and close the garage door.