Use the adjustment bolt to tighten the chain.
Garage door chain tighten.
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There s usually a piece of rope hanging from it which is used to disengage and re engage the opener.
Just tighten enough to stop it hitting the rail.
If you find that your garage door opener chain has become loose with time you may want to tighten it up in order to remove some of that slack.
How to tighten your garage door chain.
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.
Adjust the chain on a garage door opener with help from a garage door spec.
Tightening your garage door chain is a simple matter of turning the right nut.
The one you re looking for is attached to a bolt found at the spot where the trolley or carriage connects to the rail.
The trolley is responsible for pushing or pulling the opener arm along the chain so as to open and close the garage door.
The chain is a very important component that makes up a garage door opener system.
Remember to not over tighten the chain.