Kent Barrington, a service technician, rebuilds a universal joint for a John Deere 4930 agricultural sprayer, at Klein Equipment, a John Deere dealership in Galesburg, Illinois, U.S., on Tuesday, Feb. 12, 2013. Deere & Co., the world's largest maker of agricultural equipment, is scheduled to release quarterly earnings on Feb. 13. Photographer: Daniel Acker/Bloomberg via Getty Images