Job Description:

• 1) Tends one or more machines that pump concrete, grout, or dry mixtures of sand and cement through hoses to fill forms and crevices or to coat surfaces: Positions hose or temporary pipeline and snaps couplings together.

• 2) Shovels materials into hopper, moves lever to discharge materials from skip into hopper, or signals CONCRETE-MIXING-TRUCK DRIVER to fill hopper with concrete.

• 3) Moves controls to start and operate mixer.

• 4) Starts pump or compressor and turns valves to regulate air pressure and flow of materials through hose.

• 5) May aim hose nozzle into space to be filled or at surface to be coated.

• 6) May lubricate and repair machinery.

• 7) May be designated according to type of machine tended as Cement-Gun Operator; Concrete-Gun Operator; Concrete-Pump Operator; Grout-Pump Operator.