As it pertains to the hoist motion limits associated with an electro-hydraulic cargo- handling pedestal-type deck crane, which statement is true?
Official USCG Answer & Rule Citation
Correct Answer: Option D — When the hoist cable is payed out to a nearly empty drum condition or when the hoist block is raised to a maximum permissible height relative to the boom, the hoist pump shall be stroked to zero and the hoist winch brake set.
Safety limit switches on deck cranes prevent mechanical damage. When the hoist reaches the maximum height or the cable is nearly exhausted, the system must automatically stroke the hydraulic pump to zero and engage the brake. This prevents over-hoisting or cable damage, ensuring the load remains secure and stationary.
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