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CENTRAL ILLINIOS | A couple pics of what to expect if you don't grease them. The first is of the bits of plastic stuck to the cover and the second is of the main gear. Doesn't show up too well but the teeth are ground sharp. This is a Chamberlain installed in 1995.
 (garage door opener 003 (2).jpg)
 (garage door opener 005.jpg)
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 garage door opener 003 (2).jpg (59KB - 755 downloads)
garage door opener 005.jpg (36KB - 755 downloads)
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grease for plastic gears?
