Telehandlers are machinery which are designed to work in rough terrain, although, that doesn't mean that they can be driven without any regard for the terrain. These types of machinery have a a lot greater 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 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 help to control the telehandler's speed. Try to avoid turning on a slope if possible. If you need to make the turn, use extreme caution and take it as wide as possible.
Under any conditions, avoid driving across very steep slopes. Descend and ascend slopes with the heavy end of the telehandler pointing up the incline. Even when the forks have no load, the counterweighted rear of the machine is quite heavy; therefore, it can be necessary to drive in reverse up slopes. Once the telehandler is carrying a cargo, 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 very essential. The coordinated steering equipment, along with the rear-pivot equipment normally operate on the same jobsite where everyone is permitted to use all of the equipment. In this case, a person who is used to operating a coordinated steer equipment can jump onto a rear-pivot equipment. A really key distinction between how these two units operate depends on which part of the machine extends outside of the turning radius.