As it pertains to the luffing motion limits associated with an electro-hydraulic cargo- handling pedestal-type deck crane, what statement is true?

Correct Answer: Option C — When the boom is raised to a maximum permissible height or lowered to a minimum permissible height, the luffing pump shall be stroked to zero and the luffing winch brake set.

Luffing limit switches protect the crane structure by preventing the boom from exceeding safe operating angles. When the boom reaches the maximum or minimum limit, the control system automatically strokes the luffing pump to zero and sets the winch brake to prevent structural damage or mechanical overload.