Sight and hold this level with a vertical tree...

or a corner of a building...

or a fence post

10°

Use this page as a guide to determine slopes where you may safely operate your mower with a grass bag attachment installed.

WARNING! Do not operate your lawn mower with a bagger attachment on inclines with a slope in excess of 10 degrees (a rise of lyapproximatevery1-3⁄410feet)t . A riding mower with a bagger attachment could overturn and cause serious injury. Operate riding mowers up and down slopes, never across the face of slopes.

Section 2 — Important Safe Operation Practices 5