The trial lift run is required in which scenarios?

• A. Route changes
• B. Moving to a new location
• C. Shift change
• D. All of the above

Answer: (D)

A trial lift run is a controlled, lightweight lift used to verify that everything about the crane setup and operating environment is still safe after a change. That’s why it’s required in all of these scenarios. When the route changes, you’re entering a new path with different obstacles, ground conditions, wind exposure, and potential clearance issues. A quick lift test helps confirm the crane remains level, the outriggers are properly placed, and the load path is clear under the new route conditions. Moving to a new location brings different ground bearing, surface slope, and environmental factors, which can affect stability and the crane’s capacity. A trial lift ensures the setup is still within the load chart and that there are no hidden issues with footing, cribbing, or rigging under the new site conditions. A shift change introduces a new operator who may not be fully aligned with the prior setup, so a light lift verifies that controls, rigging, and load handling are all functioning correctly and that nothing has drifted during handover. In short, performing a trial lift run in these situations helps catch any changes that could compromise safety before proceeding with heavier lifts.