Telehandlers are heavy duty work machines made specifically to operate in rough environment. This however, does not mean they could be driven without consideration on rough terrain. These equipments have a much greater risk of tipping over or load loss when they are traveling on slopes.
When traveling on a slope, make sure that you move slowly with the equipment while also keeping the load low. Downshift to 4WD and a lower gear, prior to getting on the slope. Using the engine brake would help to control the speed of the telehandlers. Try not to turn on a slope if possible. If you must make the turn, take it as wide as possible and utilize extreme care.
Under any conditions, do not drive across very steep slopes. Descend and ascend slopes with the telehandler's heavy end pointing up the incline. Even when the forks have no cargo, the counterweighted rear of the machinery is fairly heavy; therefore, it could be required to drive backwards up slopes. When the telehandler is carrying a cargo, the front of the unit becomes the heavy end, and you could back the machine down the slopes.
On a mixed jobsite, operator training is very important. The coordinated steering machinery, along with the rear-pivot machines often work on the same jobsite where everyone is allowed to operate all of the machinery. In this instance, an individual who is used to utilizing a coordinated steer equipment could jump onto a rear-pivot machine. A really key difference between how these two units work depends on what part of the machinery extends outside of the turning radius.