First, locate a secure mounting point on ceiling beam or joist. Securely attach chain block using lag bolts. Feed chain through pulley wheel on block. Connect other end of chain to shutter panel using S-hook or clevis. Adjust chain tension with tensioner to desired level for smooth operation. Test chain block by operating shutter before finalizing installation. Follow all safety protocols during installation process. Website Link: http://www.sk-shutter.com/p/products-type.htmlAll Rights Reserved