Telehandlers are machines which are meant to work in rough environment, although, that doesn't mean that they could be driven without any consideration for the terrain. These kinds of 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, before getting on the slope. Utilizing the engine brake would really help to control the speed of the telehandlers. Try to avoid turning on a slope if possible. If you must make the turn, use extreme care and take it as wide as possible.
Always try not to drive across excessively steep slopes. Utilize the telehandler's heavy end pointing up the incline, when ascending and descending slopes. Even when there is no cargo on the forks, the counterweighted rear of the equipment is fairly heavy; hence, it can be required to drive in reverse up slopes. Once the telehandler is carrying a load, the front of the unit becomes the heavy end, and you can back the equipment down the slopes.
On a mixed jobsite, operator training is very essential. The coordinated steering machines, along with the rear-pivot machines normally operate on the same jobsite where everybody is allowed to operate all of the machines. In this instance, a person who is used to using a coordinated steer machine can jump onto a rear-pivot equipment. A really key distinction between how these two units work has much to do with what part of the machinery extends outside of the turning radius.