questions about - Gear

My garage door opener chain broke, how can I fix it?

Garage door openers can be chain driven, belt driven and even screw driven. The chain drive garage door opener is very strong and seldom does the chain actually break. Sometimes the cable will break if it is a combination chain and cable drive system. In this case the cable can be replaced, fixing the problem. The most common cause for the cable breaking is too much tension at installation and rust. The most common cause of a chain being loose, and appearing broken, is a broken gear and sprocket. The gear and sprocket assembly is inside the cover of the garage door opener
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