Heavy Equipment Operator
Specialize in operating massive construction machinery, like bulldozers.
Drives heavy rolling machine to compact earth fills, subgrades, flexible base, and bituminous surface to grade specifications preparatory to construction of highways, streets, and runways: Moves levers, depresses pedals, turns handwheels, and pushes throttle to control and guide machine. Drives machine in successive overlapping passes over surface to be compacted. Determines speed and direction of machine, based on knowledge of compressibility of material under changing temperatures, so that ridges are not formed by excessive pressure. Pushes hand roller and pounds surfaces, using hand tamp, or guides portable power roller over areas not accessible to road roller. May be designated according to surface rolled as Road-Roller Operator, Hot Mix; Subgrade-Roller Operator; or according to source of power used as Diesel-Roller Operator; Gas-Roller Operator.