There are 5 key steps to ensuring safety is a top priority. The initial step is completing a Walk-Around Inspection to be able to insure that the unit is visually safe. Then check if the worksite is safe to use with a Worksite Assessment. The Function Test is the third step so as to know whether or not the model is working safely. The 4th thing to think about is Proper Operation, in order to know whether or not the unit is safely working. Lastly, Proper Shutdown has to be checked so as to make certain the unit is capable of shutting down correctly and is in a safe place.
At the center of the 5 steps and this regulation, there is a machine which lifts heavy weights to impressive heights and stands on a triangular footprint. The key goal is to be able to maintain the telehandler upright, but of course there are dangers.
The rear-axle pivot point, and the two front wheels make up the triangular base of the telehandler. Usually the back axle oscillates and therefore, the back wheels are not a part of the base. The telehandler remains upright so long as the center of gravity of the machinery, that is defined as the point in 3 dimensions around which the machine's weight is balanced, stays oriented inside the stability triangle.
When a load is placed on the forks whilst the boom is down, the center of gravity forward and down. The load if raised would move the center of gravity to the rear upwards. At the same time, the stability triangle shrinks when this happens. Thus, the higher you raise a load, the less of a margin for error you have as the stability triangle lessens.
When the stability triangle is small, it leaves less room for the center of gravity to move right or left. It is this wandering action which can change the stability triangle and leave less room for the frame to remain balanced if it is not perfectly level. Like for example, imagine the center of gravity resembling a plumb bob hanging from the boom. You would always be able to find the center of gravity somewhere on a totally vertical line between a point on the boom and the center of the ground. If the frame is not level, the center of gravity will not be oriented over the machine's centerline. The stability triangle is always aligned with the centerline of the equipment.