Trial lifts are required under which conditions?

• A. Beginning of the shift and whenever moved to a new location or lifting routes change and new hazards arise
• B. Beginning of the shift only
• C. Only during windy conditions
• D. Only after a load drop

Answer: (A)

Trial lifts are done to verify that the crane, rigging, and overall setup are safe under the current conditions before proceeding with heavier lifts. They’re required at the start of a shift to confirm everything is ready, and also whenever the crane is moved to a new location or the lifting route changes and new hazards could appear. This practice catches changes in ground conditions, outriggers, cribbing, obstacle layout, or rigging that could introduce danger, and it allows the crew to adjust before any significant lift. A light test lift helps ensure the controls, brakes, hoists, limit switches, and safety devices are functioning and that the planned route remains clear. It’s not limited to the shift start or to windy conditions, and it isn’t only required after a load drop; those situations may require checks too, but trial lifts specifically ensure safety whenever location or path changes occur.