Backed by over 30 years of experience, Manaras-Opera has one of the most reliable and innovative product lines the market has to offer. From the signature Opera brand of jackshaft to the gear head, trolley and sliding door operators, and more, Manaras-Opera proves itself to be an elite manufacturer of commercial and industrial garage door operators, parts, and accessories. Action Direct is committed to providing manuals for all of your Manaras-Opera needs! View online or download detailed spec sheets so you can use Manaras-Opera's state-of-the-line products to their fullest potential.