Telehandlers are heavy duty work machines produced particularly to operate in rough environment. This however, does not mean they could be driven without regard on rough terrain. These equipments have a much greater risk of tipping over or load loss when they are traveling on slopes.
If you do need to travel on a slope, make sure that you proceed slowly and carefully while keeping the load low. Before getting on the slope, downshift to 4WD and a lower gear. Using the engine brake would help to control the telehandler's speed. Try not to turn on a slope if possible. If you have to make the turn, take it as wide as possible and utilize extreme care.
Always try to avoid driving across very steep slopes. Use the telehandler's heavy end pointing up the incline, when ascending and descending slopes. Even when the forks have no load, the counterweighted rear of the machinery is quite heavy; thus, it could be required to drive backwards up slopes. When the telehandler is carrying a load, the front of the unit becomes the heavy end, and you can back the equipment down the slopes.
Operator training is extremely vital on a mixed jobsite. Rear pivot equipment would normally operate on the same jobsite of coordinated steering equipment, where everybody is permitted to use all of the machinery. In this case, an individual who is used to using a coordinated steer machine could jump onto a rear-pivot machinery. A very significant difference between how these two units work has a lot to do with which part of the equipment extends outside of the turning radius.