Telehandlers are machines that are meant to work in rough terrain, although, that doesn't mean that they could be driven without any regard for the terrain. These equipments have a much bigger 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. Prior to getting on the slope, downshift to 4WD and a lower gear. Using the engine brake will really help to control the speed of the telehandlers. Try not to turn on a slope if possible. If you need to make the turn, utilize extreme caution and take it as wide as possible.
Under any conditions, do not drive across extremely steep slopes. Ascend and descend slopes with the heavy end of the telehandler pointing up the incline. Even when the forks have no load, the machine's counterweighted rear is quite heavy; hence, it could be required to drive in reverse up slopes. Once the telehandler is carrying a cargo, the front of the unit becomes the heavy end, and you will be able to back the equipment down the slopes.
Operator training is hugely important on a mixed jobsite. Rear pivot machinery will normally operate on the same jobsite of coordinated steering machinery, where everybody is allowed to utilize all of the equipment. In this case, a person who is used to utilizing a coordinated steer machinery could jump onto a rear-pivot equipment. A very significant distinction between how these two units work depends on what part of the equipment extends outside of the turning radius.