Now drive the lower arm using the '+' and '-' keys until it (more precisely: the plane determined by the two centering pins) is located parallel to the base plate. Confirm the position using 'Enter'. As before, ROB3 again drives to this position 'dynamically' and you have the possibility for correction. When you have aligned the lower arm (with the upper arm aligned at +22.5 degrees) as well as possible parallel to the base plate, terminate this section using 'Ctrl-Enter'.