Sight and hold this level with a vertical tree...
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or a corner of a building...
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15 °
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Usethis page as a guide to determine slopeswhere you may not operate safely.
WARNING:
Do not operate
your lawn mower
on such slopes. Do not mow on inclines with a slope in excess of 15 degrees
(a rise of approximately
2-1/2 feet every 10 feet).
A riding
mower
could
overturn
and cause serious injury. Operate
riding
mowers
up and down
slopes, never across the face of slopes.