Operating the Machine
POSITIONING THE DRAWBAR ON THE OFFSET BAR To understand how to position the drawbar plates, you first must recognize the need for this adjustment. First of all, consider the forces acting on the single offset disk harrow. The front gang is throwing the dirt to the right, so the forces acting against the front gang are pushing the front gang carrier to the left. Conversely, the rear gang is throwing dirt to the left, so the forces acting against the rear gang are pushing it to the right. As a result, the forces acting on the harrow are trying to make the harrow rotate counter clockwise.
