Sight andhold this levelwith a verticaltree...
or a cornerof abuilding...
15°
Use this page as a guide to determine slopes where you may not operate safely.
Donotoperateyourlawnmoweronsuchslopes.Donotmowon inclineswitha slopeinexcessof 15degrees(a riseof approximately2-1/2feetevery10feet). Operatewalk=
behindmowersacrossthe faceofslopes,neverup anddownslopes.