Ground controls can be used to operate a boom-supported lift during which circumstance?

• A. Emergencies
• B. Normal Operations
• C. Both Emergencies and Normal Operations
• D. Neither Emergencies nor Normal Operations

Answer: (A)

Ground controls on a boom-supported lift are a backup control system to be used in emergencies. They’re there to move or lower the lift if the operator in the basket cannot reach the platform controls or if a rescue or safe repositioning is needed due to a malfunction or other urgent situation. Using ground controls during normal operations is avoided because the operator inside the basket should control movement, and engaging the ground controls during routine use can create unexpected motion or hazards for workers. So the situation where ground controls are appropriate is an emergency.