MOS 21F, Crane Operator Duty Descriptions

In 2004, the Engineer MOS changed from CMF 12 to CMF 21. In 2009, the Engineer MOS changed again, from CMF 21 to CMF 12.

Crane Operator
Operates crawler and truck mounted cranes and crane shovels; performs clamshell, dragline, wrecking ball, pile driving, and hook block operations; determines safe lifting capacities; installs and removes crane booms, extensions and hook blocks; installs, rigs, and removes crane attachments; positions crane outrigger assemblies and maneuvers as required; operates cranes with related attachments; directs operational maintenance on assigned equipment.

Crane Operator
Serves as senior C4 crane operator for the 659th Maintenance Company, 264th Maintenance Battalion, 82nd Sustainment Brigade; operates cranes and ancillary equipment; coordinates with local and military civil engineers to determine work and environmental constraints; calculates lifting limits; analyzes risks and mitigates safety concerns; moves and tranfers cargo containers; assists in combat engineer missions; operates construction equipment; performs user level maintenance.

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