Telehandlers are machines that are designed to operate in rough terrain, although, that doesn't mean that they can be driven without any regard for the terrain. These kinds of machines have a a lot bigger risk of tipping over or load loss when they are traveling on slopes.
If you do have to travel on a slope, ensure that you proceed carefully and slowly while keeping the load low. Before getting on the slope, downshift to 4WD and a lower gear. Using the engine brake will actually help to control the telehandler's speed. Try to avoid turning on a slope if possible. If you have to make the turn, utilize extreme care and take it as wide as possible.
Under any conditions, avoid driving across excessively steep slopes. Descend and ascend slopes with the heavy end of the telehandler pointing up the incline. Even when there is no load on the forks, the counterweighted rear of the machine is fairly heavy; therefore, 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 machine down the slopes.
On a mixed jobsite, operator training is really important. The coordinated steering machines, along with the rear-pivot equipment usually work on the same jobsite where everyone is permitted to utilize all of the machines. In this instance, a person who is used to using a coordinated steer equipment can jump onto a rear-pivot machine. A really significant difference between how these two units work depends on which part of the machinery extends outside of the turning radius.