You should have 1 2 inch of play in the chain.
How to install chamberlain chain garage door opener.
Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products.
We design and engineer residential garage door openers commercial door operators and gate entry systems.
The chamberlain group inc.
Manufactures and markets some of the world s most reliable efficient and cost effective garage door opener products for do it yourself installation.
This video will show you how to assemble and install a chamberlain garage door opener in a garage with a sectional door and a finished ceiling.
The full product line includes residential garage door openers and related garage and home accessories.
Press down on the chain with your finger.
Thread the nut s facing the door clockwise until it meets the bracket then release the chain.