Mow up and down the slope with riding equipment on hillsides - not across. Avoid sudden stops or starts.
Landscape with safety in mind. Remember that small saplings grow into large trees: be sure to leave enough space for your mower to get around a tree when it is full-grown. Avoid growing grass in tight quarters that require you to mow in reverse.
Remove low-hanging tree branches that can flick an eye or knock you off balance while mowing.
As you put in new plants, use any extra soil to fill in depressions and low spots. Leveling the terrain provides a smoother surface for a walk-behind mower or tractor.
Take a careful look at hillsides. If you cannot back up the slope, or if you feel uneasy on it, don't mow the slope Instead, plant a decorative ground cover.
Do not use a hedge trimmer to trim hedges higher than your shoulders