[. . . ] QUALITY FEATURES FOR BETTER PICTURES, EASIER OPERATION, LONGER LIFE DA-LITE IS MORE THAN PROJECTION SCREENS The POWER In PRESENTATION PRODUCTS · Exclusive Camlok Roller System ® Da-Lite Tripod, Wall and Ceiling and Electric Screens · Attractively styled · Easily installed · Economically priced · Completely self-storing · Ideal for houses of worship, schools, family centers and industrial training rooms. Da-Lite Monitor Mounts For the finest in film and video projection Da-Lite Lecterns DA-LITE SCREEN COMPANY, INC. Da-Lite Project-O-Stands and Easels Assembly Instructions for MODEL B® CLASS-RITE® 46420 Rev. [. . . ] Always examine both front and back of surface before re-rolling into case to make certain screen is free of dust, dirt or other foreign matter. OPERATING INSTRUCTIONS TO LOWER PICTURE SURFACE Pull screen down all the way. HESITATE ­ then allow screen to retract VERY SLOWLY until it locks in place. TO RAISE PICTURE SURFACE Pull down on the pull bail, then raise quickly, as a window shade. Do not allow it to roll uncontrolled into the case or damage will result. INSTALLATION Care in mounting and care in correct operation will mean a long and satisfactory life for your Da-Lite wall/ceiling screen. Locate the screen where the audience can best see it and where other furnishings in the room permit. Mount the screen so that bottom of picture surface, when fully extended, will be above the heads of viewers. No. 23 ADJUSTABLE WALL BRACKETS Screen can be extended 10"-24" from wall by wing nut and bolt adjustment. BUILT-IN HANGERS No. [. . . ] load capacity. TILT LOCK For Keystone Elimination Holds back bottom of screen in tilted position to eliminate keystoning. FOR MAP RAIL MOUNTING ­ Use keyhole slots in flat brackets. [. . . ]