Load Center & Capacity Limits Flashcards

A forklift's nameplate shows a capacity of 5,000 lbs at a 24-inch load center. If you're carrying a load with a 36-inch load center, what happens to the effective capacity?

Answer: It decreases because the load center moves forward

Moving the load center farther from the forks creates more leverage, reducing the forklift's effective lifting capacity.

What does the term 'load center' specifically refer to on a forklift?

Answer: The horizontal distance from the face of the forks to the load's center of gravity

Load center is measured horizontally from the fork face (vertical part) to the center of gravity of the load.

A capacity plate shows '6,000 lbs @ 24" LC.' You need to lift a uniformly dense pallet that is 60 inches deep. What is the load center?

Answer: 30 inches

For a uniformly dense load, the load center is half the load depth: 60 ÷ 2 = 30 inches.

When stacking loads vertically, how does lifting height affect a forklift's rated capacity?

Answer: Capacity decreases as lift height increases

As lift height increases, the load's weight shifts the center of gravity higher, reducing stability and effective capacity.

A forklift capacity plate lists attachments that reduce capacity by 500 lbs. The standard rated capacity is 4,000 lbs. What is the maximum load with the attachment installed?

Answer: 3,500 lbs

Attachments add weight and shift the load center, reducing the net capacity: 4,000 − 500 = 3,500 lbs.

Which factor is NOT typically shown on a standard forklift capacity plate?

Answer: Operator's weight

Capacity plates list rated capacity, load center, lift height, and attachment data — not the operator's weight.

A side-shifting attachment is installed on a forklift. How does this affect capacity when the load is shifted fully to one side?

Answer: Capacity decreases because the load center shifts off-center

Shifting a load laterally moves its center of gravity sideways, reducing stability and effective capacity.