There are 5 key steps to ensuring safety is a top priority. The first step is completing a Walk-Around Inspection to be able to assure that the unit is visually safe. Next assess if the worksite is safe to utilize with a Worksite Assessment. The Function Test is the third step in order to determine whether or not the unit is safely functioning. The 4th thing to consider is Proper Operation, so as to know whether or not the unit is safely working. Lastly, Proper Shutdown should be checked in order to make certain the model is capable of shutting down correctly and is in a safe place.
There is a machine which lifts heavy weights to impressive heights upon a triangular footprint at the center of the 5 steps and this regulation. The main objective is to be able to maintain the telehandler upright, but of course there are risks.
The rear-axle pivot point, and the two front wheels make up the triangular base of the telehandler. Normally the back axle oscillates and hence, the rear wheels are not a part of the base. The telehandler remains upright so long as the equipment's center of gravity, that is defined as the point in 3 dimensions around which the weight of the equipment is balanced, stays oriented inside the stability triangle.
When the boom is down, adding a load to the forks at that same time moves the center of gravity forward and down. Raising the load would move the center of gravity upwards and to the rear. At the same time, the stability triangle shrinks when this happens. Thus, the higher you lift a load, the less of a margin for error you have because the stability triangle lessens.
When the stability triangle is small, it leaves less room for the center of gravity to move left or right. It is this wandering action that could change the stability triangle and leave less room for the frame to remain balanced if it is not completely level. For example, imagine the center of gravity resembling a plumb bob hanging from the boom. You could always find the center of gravity somewhere on a totally vertical line between the center of the ground and a point on the boom. If the frame is not level, the center of gravity will not be oriented over the equipment's centerline. The stability triangle is always aligned with the centerline of the machine.