A forklift has a three-point suspension system. The points are found over both of the two load (front) wheels and midway between the rear wheels. When imaginary lines are drawn to connect them, what’s known as the stability triangle is formed.
What is the stability of a forklift based on?
Forklift stability is based on keeping the center of gravity inside what’s called the stability triangle. This stability triangle is made by connecting the two front wheels and the pivot point of the rear axle. The other concept to understand is the forklift’s center of gravity.
What is the stability triangle of a forklift?
What is the stability triangle? Most counterbalanced forklifts have a three-point suspension system, meaning that the truck is supported at the two front wheels and the center of the steer axle. If you imagine all three points connected into a triangle, this is the forklift’s stability triangle.
Where is the vertical stability line located on a forklift?
Through the forklift’s center of gravity is a vertical line of stability or line of action.
Do forklifts have a higher center of gravity than cars?
Forklifts also have a much different center of gravity than passenger cars. On a forklift, the center of gravity tends to be much higher than that of a car. Plus, a forklift’s center of gravity will shift whenever the lift truck picks up a load. The forklift’s higher weight has a lot to do with this.
Is a forklift more stable with or without a load?
When a load is raised, the lift truck is less stable. Check that the overhead clearance is adequate before raising loads. Do not raise or lower the fork unless the lift truck is stopped and braked. … In other words, the operator must stay on the forklift when the load is in a raised position.
Why are unloaded forklifts more likely to tip over?
This is important because the centre of gravity must remain within this triangle of stability. If the centre of gravity falls outside the triangle, the forklift will tip over. This principle explains why an un-laden forklift can easily tip over with a simple sharp turn, even on a level surface.
At what distance is a forklift considered to be unattended?
According to OSHA, a forklift is considered unattended when its operator is 25 feet or more away from it and it remains in the operator’s view or when he leaves the truck and it is now in his view.
Are forklifts front wheel drive?
Forklifts are front wheel drive. The front wheels drive while the rear wheels steer.
What will make the load more stable during travel?
When traveling with a load, always make sure to tilt the mast of the forklift backward so that the load will firmly place against the backrest to make it more secure during transport. By doing this, you move the center of gravity towards to rear of the forklift making it more secure when traveling.
Can you use a forklift to lift a person?
The OSHA rule for forklifts at construction sites at 29 CFR 1926.602(c)says trucks with lifting carriages or forks for lifting personnel must use a safety platform firmly secured to the lifting carriage or forks. … Consequently, OSHA prohibits the use of such equipment to elevate personnel.
When traveling down a ramp or incline on a forklift?
When carrying a heavy load on grade, the forklift must be able to safely stop. When your operators are traveling without a load, the forks should be pointed down the incline. This would include going up or down the ramp. The forks should be raised enough to safely clear the grade.
How is a forklift different from a car?
Another major difference between a forklift and a car is in the stability of the vehicle. A forklift has just three points of stability—the front wheels and the center of the rear axle—while a car has four points of stability. … Most forklifts are not designed to handle rough working surfaces like a car.
What will reduce the stability of a moving forklift?
Turning with an elevated load
It’s a common contributor towards tip-overs because turning at the same time as raising or lowering a load causes greater force to be applied to one side of the truck than the other, reducing stability.
What will happen if the combined center of gravity?
What will happen if the ” Combined Center of Gravity” moves outside the stability triangle? The lift truck will tip over in the same direction. As the load center increases the capacity increases.
What is the combined center of gravity?
Center of gravity is the point at which an object’s weight is evenly distributed and the object is balanced. The stability triangle is the area between the two front wheels and the middle of the rear axle. To stay upright, the forklift’s combined center of gravity must stay within the stability triangle.