A telehandler is being used to place a truss onto a building structure. The truss weighs 800 kg. The operator is using a lifting hook attachment mounted on the forks. The load chart for the lifting hook indicates a derating factor because of the increased load centre from the hook. If the telehandler's original capacity at the required lift height and radius is 2,000 kg, and the lifting hook attachment reduces this by 25%, what is the maximum load the operator can safely lift with the attachment, and can they lift the truss?

Question: A telehandler is being used to place a truss onto a building structure. The truss weighs 800 kg. The operator is using a lifting hook attachment mounted on the forks. The load chart for the lifting hook indicates a derating factor because of the increased load centre from the hook. If the telehandler's original capacity at the required lift height and radius is 2,000 kg, and the lifting hook attachment reduces this by 25%, what is the maximum load the operator can safely lift with the attachment, and can they lift the truss?

Answer options: ✅ 1,500 kg; Yes

• 1,000 kg; Yes
• 500 kg; No
• 2,000 kg; Yes

Correct answer: 1,500 kg; Yes

Explanation: The original capacity is 2,000 kg. A 25% reduction means the new capacity is 2,000 kg * (1 - 0.25) = 1,500 kg. Since the truss weighs 800 kg, which is less than 1,500 kg, the operator can safely lift it.