Telehandlers are heavy duty work machinery made specifically to operate in rough terrain. This however, does not mean they could be driven without consideration on rough terrain. These types of machinery have a a lot bigger risk of load loss or tipping over when they are traveling on slopes.
If you do need to travel on a slope, make certain 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 help to control the telehandler's speed. Try not to turn on a slope if possible. If you must make the turn, use extreme caution and take it as wide as possible.
Under any circumstances, avoid driving across extremely steep slopes. Ascend and descend slopes with the telehandler's heavy end pointing up the incline. Even when there is no load on the forks, the counterweighted rear of the machinery is quite heavy; therefore, it could 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 could back the equipment down the slopes.
On a mixed jobsite, operator training is really important. The coordinated steering machinery, along with the rear-pivot equipment often work on the same jobsite where everybody is permitted to utilize all of the equipment. In this instance, an individual who is used to utilizing a coordinated steer equipment could jump onto a rear-pivot machinery. A very key difference between how these two units operate has a lot to do with what part of the equipment extends outside of the turning radius.