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How do I put my chain back on a Stanley 8500 Garage door opener?

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First you must make sure the sprocket on the garage door opener is spinning clockwise and reaches its limit and stops, you can easily put a pair of pliers between the #1 and #2 terminals on the garage door opener and start the sprocket spinning or just grab a remote and watch from the back of the unit (looking towards garage door ) and make sure it,s direction is clockwise, Once it stops you wanna loosen the chain enough so you can position the carriage which is connected to the chain and with your door closed send the carriage down far enough so that the carriage and the trolley both engage then all you have to do is put the chain over the sprocket and tighten up the tensioner that is located on the trolley...not to tight and not to loose is what you would want in an adjustment !....now since you already ran the sprocket in the down position your door is now ready to test ...when you press your remote or wall station the door will travel up, You have to do it this way , if you don,t ..you can damage the machine or your door ! Good luck and hope I was able to help you with your dilemma!

Posted on May 09, 2014

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Posted on Jan 02, 2017

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  • 6 Answers

SOURCE: Craftsman Garage Door Opener Won't Open

When mine did this, it was because the nylon gears that drive the chain had stripped. My wife had to live without the opener for a week or more, but I was able to find a new gear kit online and replace the damaged gears. It wasn't difficult.
The other option is to buy a new opener.

Posted on Dec 07, 2008

  • 118 Answers

SOURCE: motor runs but door does not open

you have a stripped gear on your opener. Replace gear and sprocket kit

Posted on Feb 08, 2009

rustym62
  • 201 Answers

SOURCE: garage door opens all the way only closes half way down

Hi,
Some of your comments look like they're missing but from what I can see you had to put chain back on and now the door doesn't close all the way.take the cover off and look at the limit switch,this the travel adjustment. The switch for the close side is making contact too soon so it shuts off early.You need to adjust contacts so its further away. Depending on where the trolley was when you reattached the chain, you might not be able to adjust it back enough.But try it first. If you still come up short you will have to take the chain back off and move the trolley back to where the door would be closed and reattach chain. now open position will probably need adjustment leave door unhooked and just let trolley move in case it over shoots the mark either way.

Posted on Apr 28, 2009

  • 3197 Answers

SOURCE: Garage door opener won't open or close door

The drive gear is stripped. Remove the cover and you can see it just in front of the motor. It is white nylon and the part number is 41A2817. Available from Sears or any good door opener service company. It will come with instructions.

Posted on Jun 06, 2009

  • 3197 Answers

SOURCE: Garage Door Goes down 5 inches and then up 5 inches.

Okay here we go.

Make sure you put the black cup back on the end of the motor shaft and that it is pressed all the way on. Make sure the RPM sensor is plugged in. If neither of these is the issue, then you probably did not have the motor shaft pushed all the way back when you tightened the coupler after replacing the worm gear. Loosen that coupler up and from the front of the motor (opposite end in which the coupler is on) push the shaft back as far as it will go. Hold it there while you tighten the coupler back up and then give it a try.

Posted on Jul 06, 2009

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1 Answer

I have a Stanley garage door opener model 8500. I replaced the door and now my operate button doesn't work. Is there a reset?


If the door is heaver than the original you may to adjust the opening force and the closing force. Check your instructions. The closest gdo I found was a chamberlain 8500. Go online to
Elite Series 8500 Garage Door Openers LiftMaster and see if this the same unit. The instructions can viewed . Good Luck

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My stanley garage door opener's chain snaps everytime i open with remote


have you checked the chain tension adjustment for proper amount of deflection? This is listed in the manual that comes with your garage door opener. Usually, the chain is too loose from the problem that you are describing. I would check online for the manual if you don't have access to yours. Also, the travel adjustments for stop (up and down resting positions) would be explained as well.

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1 Answer

My stanley garage door opener motor runs but it won't open or close my door


If the motor runs and the chain does not then you have stripped the gears and will need to replace them. If the motor runs, the chain moves but the door does not move then the trolley is not attached or needs to be replaced. Thanks BB

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1 Answer

How to reset garage door opener pad without old acess number


A Stanley garage door keypad is wall-mounted, battery-operated device that allows you to open your home's garage door electronically without having to manually lift the door or use a pull chain. The keypad uses a four-digit access code that you program after the keypad is initially installed. You can change the code, disable the keypad manually by entering a invalid code and reset the keypad if the device is not working properly. After you reset your Stanley garage door keypad, the device is ready to accept a new access code.

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1 Answer

Stanley garage door opener chain screw adjustment


THE ADJUSTMENT IS SUPPOSED TO HAVE A 2ND NUT THE TWO TIGHTEN AGAINST EACH OTHER AND ACT LIKE A LOCK

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Need to tighten chain on stanley model # 3220.50 Serial code 9101


IT MAY BE ON THE FRONT END OF THE RAIL.

MANY OF THESE ADJUST WHERE THE CHAIN CONNECTS TO THE TRAVELER.

DON'T MAKE IT TOO TIGHT THE BUSHING AT THE POWER END IS PROBABLY ABOUT GONE (THIS IS WHAT CAUSES THE CHAIN TO GET LOOSE) LEAVE A SAG OF ABOUT 1.5 INCHES.

ALSO START WATCHING THE ADS FOR A GOOD DEAL ONCE THE BUSHING IS GONE THE UNIT IS TOAST - PARTS ARE NOT AVAILABLE FOR MOST STANLEY UNITS.

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