First drive brackets into track. If they are to be fastened to uprights, (No. 14 or No. 14H brackets) drive brackets to center of each upright. If brackets are to be fastened to edge of shelf, (No. 27 or No. 27H brackets) drive brackets at a distance of no more than 36 inches from center to center. Drill holes, and screw the brackets on tight. Wooden dowels are supplied to connect sections of track. Brackets cannot be placed at connections of track. (With No. 27 or No. 27H brackets, take bracket apart and screw back section on first.)
Attach top fixtures, (No. 210 roll or No. 230 hook), to ladder on the beveled cut at top of ladder, centering fixture around the rung at top. On the No. 210 roll type top fixture, put the large wheel on top. On top-bent ladders, attach top fixtures at the bottom of the top-bent section, with the wheels all the way down.
All ladders are made slightly longer than measured with the bottom fixtures left off so that the ladder can be cut to the exact length.
With the No. 210 roll type top fixtures, stand the ladder straight up and down against the track with the No. 210 slide fixtures in the down position. Measure the distance from the center of the two wheels to the center of the track, add one inch to this, and cut that amount off the bottom of the ladder.
With the No. 230 hook type top fixtures, stand the ladder straight up and down against the track with the No. 230 hook fixtures in the down position. Measure the distance from the inside of the hook to the top of the track, add one inch to this, and cut that amount off the bottom of the ladder.
Bottom fixtures (No. 270 regular or No. 270 old style) should be installed vertical to the floor when ladder is in the pulled-out position. To do this, fixtures have to be mounted partially across the side rail. (see figure 3).
If a curve is involved, install the curve first with the corner brace.