Move levers to position dredges for excavation, to engage hydraulic pumps, to raise and lower suction booms, and to control rotation of cutterheads.
Start and stop engines to operate equipment.
Start power winches that draw in or let out cables to change positions of dredges, or pull in and let out cables manually.
Pump water to clear machinery pipelines.
Lower anchor poles to verify depths of excavations, using winches, or scan depth gauges to determine depths of excavations.
Direct or assist workers placing shore anchors and cables, laying additional pipes from dredges to shore, and pumping water from pontoons.