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Question About Craftsman Garage Door Opener 139.53914D
Chain pullie is not working properly...

the chain pully seems to broken as it is not working properly. Tried taking off the chain and re adjusted it. It didnt work as it only open halfway. also found a fragment of metal underthe sproket that is part of the chain drive

Asked by Randy on 10/05/2009 1  Answer

ManualsOnline posted an answer 15 years ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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