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5. SLOPE OPERATIONAL SAFETY
5.1 SLOPE IDENTIFICATION GUIDE
Figure 10
Measure the slope of a lawn surface with a smartphone or angle nder tool:
WARNING
Do not operate on slopes greater than 12 degrees.
1. Use a straight edge at least two (2) feet long (A, Figure 10). A 2x4 or a straight piece of metal works
well.
2. Angle nder tools.
a) Use your smartphone: Many smartphones (B, Figure 10) have an inclinometer (angle nder)
located under the compass application (app). Or, search an app store for an Inclinometer app.
b) Use angle nder tools: Angle nder tools (C & D,Figure 10) are available at local hardware
stores or online (also called inclinometer, protractor, angle meter, or angle gauge). Dial type (C)
or digital type (D) work, others may not. Follow user instructions with the angle nder tool.
3. Place the two (2) feet long straight edge along the steepest part of the lawn slope. Place the board
up and down the slope.
4. Lay the smartphone or angle nder tool on the straight edge and read the angle in degrees. This is
the slope of your lawn.