Telehandlers are heavy duty work machinery made specially to work in rough terrain. This however, does not mean they could be driven without consideration on rough terrain. These equipments 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 would help to control the speed of the telehandlers. Try to avoid turning on a slope if possible. If you must make the turn, take it as wide as possible and use extreme care.
Always try to avoid driving across excessively steep slopes. Utilize the heavy end of the telehandler pointing up the incline, when ascending and descending slopes. Even when the forks have no cargo, the counterweighted rear of the machine is quite heavy; thus, it could be necessary to drive backwards 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.
On a mixed jobsite, operator training is really vital. The coordinated steering machines, along with the rear-pivot machines often operate on the same jobsite where everyone is allowed to use all of the machinery. In this instance, a person who is used to operating a coordinated steer machinery can jump onto a rear-pivot machine. A very significant difference between how these two units work has much to do with which part of the machine extends outside of the turning radius.