Motor graders are one of the hardest pieces of equipment to operate. As you can tell from the picture, there are nine levers on each side of the steering wheel. You have to operate all of these levers to grade the ground. If you pull or push one or two levers at a time, you can control a blade, a ripper, and the angle of the wheel in delicate manners.

Motor grader [THE GREAT PICTURE BOOK OF CONSTRUCTION EQUIPMENT]