Check the fuel level before leaving the barnyard or shop area. You cannot assume that someone else has done this job. Failure to check the fuel level may result in lost field time. Or it may result in the need to mechanically bleed air from diesel fuel lines in some older tractors.
Be sure you do not fill diesel fuel tanks with gasoline and vice versa.
This video is used for the National Safe Tractor and Machinery Operation Program (NSTMOP), www.NSTMOP.psu.edu, and in the AgSafety4U program.
More Agricultural safety videos can be found on eXtension's AgSafety4u Youtube channel: https://www.youtube.com/user/AgSafety4u/videos