How to adjust your garage door chain

In this video I will show you how to easily adjust your garage door chain to reduce slack and noise, and increase efficiency.
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[@rfern263]

There are dozens of videos on UA-cam that tell you to adjust a sagging garage door chain like this, but not one tells you to check for trouble with the idler pulley which can also be the culprit and is a very easy fix.

[@josephdolan3035]

Thanks man, the trick to pull the tension out of the chain just saved me.

[@scottburrow8717]

Thanks for the help. Works great now that the chain is tightened.

[@nickfiek]

Just what I needed. Thank you.

[@MrFixItTheRealtor]

Glad it helped!

[@Bella-vt7ol]

You just saved me $100!!!!! Thanks so much!!!

[@MrFixItTheRealtor]

Fantastic!

[@manuelcanales1471]

Thanks good job

[@bigmj8489]

Thanks!!

[@petersmichaeld59]

Thanks so much for this easy chain adjustment....need video on replacing 4 piece tube on Stanley model 3220 garage opener and ...the black adjustment knobs on bottom of unit functionality...any assistance would be greatly appreciated

[@RobertGittens-jd4je]

My chain is just as loose as yours I’ll be on this tomorrow morning

[@cacaiashi7427]

great video bud. just a question whats the reason the chain is sagging. we are moving to a used property and that's one of the minor issues that needs to be repaired. any advice to prevent the sagging of the chain? or is it normal?

[@MrFixItTheRealtor]

@@cacaiashi7427 thanks for checking it out! In the case of my door, it ended up being an indication of another issue with the actual door itself which somebody seemed to have hit and that caused the chain to sag. It was more of a temporary band aid for the problem. I would carefully inspect the door to see that there is no buckling or sagging and that the rails are fully secure. The other option is something just came out of adjustment at the opener.

[@RzVids]

I can't find what I'm looking for... I adjusted the thing that actually attaches to the garage door there's two bolts shown at 1:11. I made it longer and now when I open the garage door it's too long

[@rickmeadows686]

Using a crescent wrench! Oh come on…. I thought the guy was a mechanic.

[@davidortiz4935]

Door has to be closed position to adjust tension?

[@MrFixItTheRealtor]

It’s easier with the door closed as it will otherwise get in your way. Be careful not to make too tight or you could snap the sprocket on top of the opener motor.

[@davidortiz4935]

@@MrFixItTheRealtor thank you!! This video is very helpful!

[@MrFixItTheRealtor]

@@davidortiz4935 my pleasure!

[@shanemane4249]

I have no bolt. It’s some plastic piece with a couple of tiny screws. I can’t find any video with this piece.

[@mak6371]

The tension on both sides needs to be equal. Otherwise the cord is under immense tension and when it gets cold it's going to snap resulting in an expensive repair. The easiest way to know if the tension is equal is to have same amount of slack on both sides.

[@RobertGittens-jd4je]

My chain is just as loose as yours I’ll be on this tomorrow morning

[@MrFixItTheRealtor]

Good luck! If you over tighten it can cause it to snap so just be careful.