Sight and hold this level with a vertical tree...
or a corner of a building...
or a fence post
15°
Use this page as a guide to determine slopes where you may not operate safely.
Do not operateWARNING:your lawn mower on such slopes. Do not mow on inclines with a slope in excess of 15 degrees
(a rise of approximately
up and down slopes.
Section 2 — Important Safe Operation Practices 7