To make sure that safety is a top priority, there are 5 important steps. To be able to ensure that the model is visually safe, the first step is to perform a Walk-Around Inspection. Next check if the work location is safe to operate in with a Worksite Assessment. The Function Test is the third step in order to know whether or not the model is working in a safe way. The 4th thing to consider is Proper Operation, in order to know whether or not the unit is safely operating. Lastly, Proper Shutdown should be checked in order to make sure the unit is capable of shutting down properly and is in a safe place.
There is a machinery that lifts heavy weights to impressive heights upon a triangular footprint at the center of the 5 steps and this regulation. The key goal is to be able to maintain the telehandler upright, but surely there are risks.
The rear-axle pivot point, and the two front wheels make up the telehandler's triangular base. Usually the back axle oscillates and thus, the rear wheels are not a part of the base. The telehandler remains upright as long as the center of gravity of the machinery, 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 changes the center of gravity down and forward. Lifting the load will change the center of gravity upwards and to the rear. At the same time, when this occurs, the stability triangle shrinks. Hence, the higher you raise a load, the less of a margin for error you have as the stability triangle lessens.
With a small but stable 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 perfectly level. For instance, 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 equipment's centerline. The stability triangle is always aligned with the centerline of the equipment.