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

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Is the worm drive on a chamberlain model 1060-6 garage door opener repairable?

Worm gear is okay, but the gear running the chain is worn bad enough it doesn't open door

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Yes, and not that bad of a job. parts on eBay or other online sites.

Posted on Sep 03, 2015

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6ya6ya

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Posted on Jan 02, 2017

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1 Answer

Is there any adjustment for the gear drive sprocket that meshes with the worm drive? my gear is not engaging any more


If your drive gear is not meshing with the worm gear it is because it is worn out. You'll need to replace it post haste. The part number is 41A2817 and is available at Sears or any good door opener service company.

Dec 20, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Had 1/2 hp sears/craftman chain drive garage opener for a number of years but recently garage door did not open all the way. Discovered worm gear and main gear worn out so replaced them with kit from...


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 are 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 try it.


Jan 21, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

I recently replaced the gear drive on my craftsmen chain drive opener. However, now the opener only moves a couple of feet and then returns back. adjustments dont work. What is the problem?


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 are 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 try it.

You should also loosen the chain enough that you can remove it from the sprocket above the motor. Now with the door closed and everything else attached run the motor until it runs clockwise and stops. Replace and tighten the chain. Some adjusting of the up and down limits will be required.


Nov 16, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Need part 41A2817 drive/worm gear kit for Sears


as long as the door is less than ten years old, sears will stock the part you need. you can contact them through this link.

http://www.searspartsdirect.com/partsdirect/index.action?psid=58709328&sid=PSx20071217x00001a

Apr 22, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Wayne dalton garage door is humming but wont open


Likely the plastic gears are worn out. Unplug the unit from power source, remove the cover, look at the gears. If worn, it will be obvious from the shavings from the gears. You can buy the gear kit on EBAY for a little as $20 depending on the manufacturer and model. Before removing the chain drive, lock a pair of vice grips on the chain and metal chain rail to keep the chain from turning from its current position. The gears can be replaced without removing the opener. Even if you have to remove the opener, it is a simple task. Most have four bolts that need to be removed and it will be in you hands.

Jan 14, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

I need a repair guide for a LiftMaster garage door opener.


complete gear/bearing kit $30, comes with complete instructions.

Nov 20, 2008 | Sears Craftsman LiftMaster Chamberlain...

3 Answers

Chamberlain Power Drive 1/2 HP - motor runs but does not move chain


I have the same problem. I just removed the cover and discovered a nylon gear had been worn out. I found lots of shavings inside the cover. The nylon gear is beneath the exterior chain gear. I am looking for information on how to replace it, if I can find the part. If you decide to look at yours, unplug the power and remove the sheet metal screws securing the bottom portion of the cener cover to the front and back covers. Then just remove the upper screws from the center cover. Good luck.

Oct 08, 2008 | Chamberlain Powerdrive PD422D 1/2 HP...

1 Answer

Craftsman door opener


Did you align the chain or belt?? If not That would be the problem.

Look at the instructions that came with your gear kit. they have a detailed step by step proceedure.

If it's not the alignment it is probably a bad circuit board.

Hope this helps

Apr 29, 2008 | Sears Craftsman LiftMaster Chamberlain...

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