Forklift Operation - Maintaining the Stability Triangle
The stability triangle and the center of gravity is one of the key basic operating factors. One of the hardest things for a lift truck operator to judge is the significance of maintaining their center of gravity within their stability triangle.
The Stability Triangle
A forklift has a 3-point suspension system. The stability triangle is formed when imaginary lines are drawn between these three points. The operator must make sure that the center of gravity, that is created, combined with the machinery and his load, remains in the stability triangle to be able to guard against the forklift losing balance and tipping over.
Centers of Gravity
How is the center of gravity defined? When it comes to lift truck operation, we should be concerned not only with the load's center of gravity but as well with the combined center of gravity. This comprises the lift truck as well as the load it is picking up.
The load center is defined as the center of gravity of the load. In a uniform load situation, like a bale for example, the load center could be more easily detected. Like for instance, a uniform load on a 48 inch long pallet, would have the load center at 24 inches. This load center is very common for many lift trucks with smaller capacity. Then again, if a load is not centered correctly, like with items which are not symmetrical, perhaps an engine for example, then a lot of caution and care need to be taken to be able to estimate the center of gravity.
In addition, the lift truck has a center of gravity of its own. This shifts each time the lift truck carries a load. Once the load is lifted, the center of gravity shifts forward. Care must be taken to be able to maintain the center of gravity in the forklift's stability triangle. This occurs by following the numbers and not carrying over the maximum allowable, given the center of the load. Also, the load center should be considered. Be very careful whenever raising the load, the load center also shifts forward.
The operator and everybody else who works close-by or in the nearby vicinity, can stay much safer if the center of gravity is maintained and the stability triangle is respected. This will guarantee a balanced machine, balanced loads and safer for everyone.