How to Assemble and Install a Chamberlain Chain Drive Garage Door Opener 

This video demonstrates how to assemble and install a Chamberlain Chain Drive garage door opener in a garage with a sectional door and a finished ceiling. These steps apply to all recent models of Chamberlain chain drive garage door openers so your product may appear different than what is in the video.
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This video is intended for demonstration purposes only. Please consult the manual for complete instructions and safety information.