Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+

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Might need to shorten the garage door opener-can't locate manual

Need to know if one of the brackets is removed, to shorten the garage door opener, does it need to be capped off with anything?

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Need a manufacture and model number here to help you. Why do you think it needs to be shortened?

Posted on Jul 06, 2010

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Posted on Jan 02, 2017

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1 Answer

I need to take out some links in the chain on a liftmaster garage door opener. How do I do this? It is about 20 months old.


Two ways!

On the cable section of the chain use a cable shorten-er.

On the chain remove excess chain and install a master link/
26357047-x15jo43ndspuozxlydbahatb-3-0.jpg

26357047-x15jo43ndspuozxlydbahatb-3-2.jpg Master link/ You would need to go to a bicycle shop to have the chain shortened.

26357047-x15jo43ndspuozxlydbahatb-3-5.jpg Check to make sure you can not extend the rail before cutting chain. The cable shorten-ers will likely be available at an auto parts store. They are used to adjust the parking brake!

HJope this helps?

Nov 15, 2016 | Building Materials

1 Answer

Overhead door opener 555 with manual release won't lockup chain


Sometimes if the clip is not reset then it wont catch the chain mechanism again to open or close the door. If you havent already reset the pull cord clip then that would be my guess. Try closing the garage door reset the clip with the rope attached, push it up til it clicks. and hit the garage door opener button. the rope and clip should move along the track until it hits the arm bracket where the garage door attaches to the chain mechanism.

If that does not do the trick then the clip has some screws on either side of the plastic casing and may need to be loosened and readjusted to match up with the garage door arm bracket and then locked back into place. That should do the trick if all esle fails, you may have to call the door company to come and correct the problem. Hope it works out!

May 28, 2012 | Home Security

2 Answers

Hello we have a Chamberlin 2265R 1/2 HP gargare door opener. There are two issues. 1) recently when we press the remote to open the garage door the door will travel a short distance then stop press it...


I have recently had the same problem. I found one of the brackets on the garage door was broken. The broken piece which was hanging may have been interfeering with the traveling of the door. It was a diamond shapped bracket labeled N1. the door opens and closes, plus putting stress on the dootr. works fine now, i am in the process as we speak to find a replacement bracket. It was driving me crazy. The door would open fine, but when closing it would stop then go back up, the light would flash. Check all yhe brackets on the garage door itself.

Nov 27, 2010 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

How to switch back to automatic after manually close the garage d


mikey-moore's advice helped me figure out what to do but it's not exactly what I had to do. Manually open the garage door all the way. Then hit the automatic button you normally would use to open and close your garage door. The bracket slides back and locks into place. Hit the automatic button again and the garage door should automatically close.

Jul 19, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Light-master garage door opener - re-engaging the motor after dis


The chain and bracket should automatically engage the door's bracket just use the remote as normal,

Feb 19, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

LiftMaster Garage Door Opener


IF YOU ARE TALKING ABOUT THE ROLLER ON THE DOOR - THE TRACK IS TOO WIDE ALLOWING THE ROLLER TO COME OUT. USE THE CLAW END OF A HAMMER TAP THE TRACK MOUNTING BRACKET AT THE WALL TO MOVE THE TRACK IN CLOSER TO THE EDGE OF THE DOOR

Aug 28, 2008 | Sears Craftsman LiftMaster Chamberlain...

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