Job Description:

• 1) Tends battery of machines that convey, wash, crush, and separate quarried stone to produce sand and gravel: Presses button to start belt conveyor that conveys material to blade mill.

• 2) Pulls lever to start blade mill that washes and separates rock, sand, and gravel from clay and other foreign matter.

• 3) Starts vibrating screens that separate materials according to size.

• 4) Presses button to start cone crusher that crushes oversized rocks.

• 5) Observes flow of materials to detect jams or equipment malfunction.

• 6) Stops machine and notifies supervisor of malfunction or breakdown.