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Loud screach noise when open/close door
I used lithium grease on all rollers, tracks,& and moving parts. Also opened unit to grease the sprockets, all with no luck. I noticed metal shavings on top of sprocket, assuming this is my problem. Any thoughts or ideas?
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Brett,
Have you checked the balance of your garage door opener? I have included a link on how to do so below.
Answer Title: How to test the balance of a garage door
Answer Link: http://chamberlain.custhelp.com/app/answers/detail/a_id/2460 -
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