Simplicity Baron Operator's Manual page 39

10° Max. 10° Max.
Operating on slopes can be dangerous
Never operate on slopes greater than 30 percent (16,7 degrees)
which is a rise of 1 meter vertically in 3 meters horizontally.
Operate the unit at a slow ground speed when driving
onto slope.
When operating on slopes that are greater than 15 percent
(8,5 degrees) but less than 30 percent, use wheel weights or
counterweights.
Use extra caution when operating on slopes with rear-mounted
grass catcher. Mow UP and DOWN the slope, never across the
face. Use caution when changing directions and DO NOT
START OR STOP ON SLOPE.
C-3