When scarifying, how many teeth of the scarifier should overlap each pass?

When scarifying, the correct approach is to ensure that at least one tooth of the scarifier overlaps on each pass. This is essential because overlapping helps achieve a more uniform and effective scarification process. When one tooth overlaps, it guarantees that the area being worked on is adequately treated, which prevents any missed spots and ensures a consistent texture and depth of disturbance. The process is crucial in achieving the desired finish for grading or preparation tasks, especially when trying to break up compacted material or improve the surface for further processes like finishing or paving.

In contrast, having no overlap would risk leaving areas untreated and could lead to uneven surfaces. Overlapping by at least two or three teeth could be excessive and may not be necessary for every scenario, which could lead to inefficiencies and unnecessary wear on the equipment. Thus, ensuring at least one tooth overlaps provides a good balance between thoroughness and efficiency.