To ensure that safety is a main concern, there are 5 key steps. To be able to make certain that the model is visually safe, the initial step is to perform a Walk-Around Inspection. Then check if the work place is safe to use with a Worksite Assessment. The Function Test is the third step in order to know whether or not the unit is functioning safely. The 4th thing to think about is Proper Operation, so as to determine whether or not the unit is safely working. Lastly, Proper Shutdown needs to be checked so as to make sure the unit is in a safe place and is capable of shutting down correctly.
At the center of the 5 steps and this regulation, there is a machinery that lifts heavy weights to impressive heights and stands on a triangular footprint. The main objective is to maintain the telehandler upright, but surely there are risks.
The two front wheels, and the rear-axle pivot point make up the telehandler's triangular base. Typically the back axle oscillates and thus, the back wheels are not a part of the base. The telehandler remains upright as long as the machine's center of gravity, which is defined as the point in 3 dimensions around which the machine's weight is balanced, stays oriented in the stability triangle.
When a load is placed on the forks whilst the boom is down, the center of gravity down and forward. The load if raised would change the center of gravity upwards to the rear. At the same time, the stability triangle shrinks when this occurs. Hence, the higher you lift a load, the less of a margin for error you have because the stability triangle lessens.
With a stable but small stability triangle, it leaves less room for the center of gravity to move left or right. This wandering action can change the stability triangle, leaving less room for the frame to remain balanced if it is not completely level. Like for example, imagine the center of gravity resembling a plumb bob hanging from the boom. You can 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 would not be oriented over the centerline of the machine. The stability triangle is always aligned with the machine's centerline.