Which functions are disabled by a kick-out system?

Which functions are disabled by a kick-out system?

• A. Hoist up only
• B. Boom down only
• C. Telescope out only
• D. Hoist up, Boom down, Telescope out

Answer: (D)

Kick-out systems are safety interlocks that stop certain crane motions to prevent unsafe changes in load position or stability. The actions that most directly alter the lifting configuration—raising the hoist, lowering the boom, and extending the telescoping boom—are disabled by the kick-out system. These motions can quickly change the crane’s center of gravity and reach, so preventing them from operating unless conditions are fully safe helps avoid unexpected movements or tip hazards during setup or when the operator isn’t actively controlling the crane.

Kick-out systems are safety interlocks that stop certain crane motions to prevent unsafe changes in load position or stability. The actions that most directly alter the lifting configuration—raising the hoist, lowering the boom, and extending the telescoping boom—are disabled by the kick-out system. These motions can quickly change the crane’s center of gravity and reach, so preventing them from operating unless conditions are fully safe helps avoid unexpected movements or tip hazards during setup or when the operator isn’t actively controlling the crane.