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

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Chain gear is stripped//garage door opener //lift master 1/3 hp

How did you change the plastic gear?...i looked at it and it does not look that easy to fix.
Thanks

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  • Anonymous Dec 20, 2008

    i had the same problem. i got a repair kit from sears that fit my model no. it took about an hour to replace all the gears. i put everything back together and it is doing the same thing. anyone have any suggestions.

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I made a webpage that includes the instructions that come with the gear kit. How to replace the gears, reset the travel settings, lots of pictures, part lists and numbers.
http://tinyurl.com/gearfix
chain gear is stripped//garage door opener //lift  - cb953ba.jpg

Posted on Mar 29, 2010

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