There are only a few ways that the chain can be tightened.
How to adjust a stanley garage door chain.
Some of them are fairly simple while others may be really time consuming.
Just tighten enough to stop it hitting the rail.
How to do a simple adjustment on a garage door opener.
This type of stanley garage door opener manual is very helpful for do it yourselfers.
How do i adjust it.
If the motor overload protector has been activated wait 10 minutes for the motor to cool down.
If your stanley garage door opener will not work ensure that it is plugged into a live 120 volt outlet.
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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.
Keep in mind that the remote control will not operate the door until the beam sensor has been attached and properly aligned.
There may be an adjustment linked to the chain or an adjustment to the length of the door opener track.
Remember to not over tighten the chain.
The garage door opener loose chain or tight chain can be an easy diy.
You may find that a loose garage door opener chain has less power to open and close your garage door or you may find that it is just hitting the door as it moves it and creating an annoying sound.
Replacement gear kit if you need one http amzn to 2drtdvc if you.
Documenting how i repaired the garage door.
Liftmaster and chamberlain are popular garage door openers with chains.
The chain on my garage door opener seems to be sagging and rubbing on the track.