Proper planning for rigging is the key to a successful tilt-up project. Engineers should determine the lifting configuration by performing a computer analysis of the panel's weight, size, and shape to locate lift points that will produce the least stress during lifting. Crane rigging also must be planned ahead of time. Although crane rigging depends on the number and location of the lifting inserts, safety is always a prime consideration. The engineer's recommendations should not be altered or ignored. Crane position is another important consideration. The safest, quickest, and least expensive method is to lift the inside face of the panel from the inside of the building. Wherever possible, panels should be lifted with the rigging facing the crane. "Blind" lifts, where the rigging is on the panel side away from the crane, should be avoided since the operator cannot visually check the rigging during the lift.
How the crane cables are attached to the panels also affects the speed and efficiency of a tilt-up job. Lift plates bolted to the panel through the coil lift inserts provide safe, positive attachment, but the lift plates must be bolted to the panels in advance so that the crane hooks can be attached without delay. The use of lifting inserts set in the face of the panel makes the panel hang at an angle from vertical, but often it is necessary for the tilt-up panels to hang nearly vertical for proper placement. A second crane line attached to edge lift points at the top of the panel can be used to make the panel hang vertically. Plumbing blocks offer another way to counteract the panel's tendency to hang off vertical.