Tend machines that clean and grade seed corns.
What does a Grader Tender do?
Tends machines that clean and grade seed corn: Starts machines and opens chute gate to permit corn to flow through series of vibrating screens. Adjusts chute slides to regulate flow of corn to reciprocating screens and revolving cylinders that separate corn kernels, according to width, thickness, and length. Examines graded kernels for uniformity, using test screen. Replaces defective screens and cylinders.