278 FARM MACHINERY REPAIR 



Working Instructions: After being assigned a group of ma- 

 chines, the student will read carefully description in text 

 references assigned by instructor. In addition, he should 

 secure catalogs and booklets describing such machines. 

 Next, from a catalog cut out, with a pair of scissors, an 

 illustration of each of the machines being studied. Paste 

 the illustration on a blank sheet of paper. Then, while 

 going over the machine being studied, label all the prin- 

 cipal parts. As a report, with the illustration give a 

 statement of the function of each part, its construction 

 and adjustment. These facts may be determined from 

 reference text, from catalogs, from discussion in class- 

 room, by examination, removing parts and taking meas- 

 urements, or from the instructor in the laboratory. 

 252. Study of Seeding Machinery. 



Requirements : To make a careful study of the different types 

 of seeding machines that the particular type of farming 

 demands, including a study of grain drills, corn planters, 

 cotton planters, broadcast seeders, pea and bean plant- 

 ers and drills. To make a test of the accuracy of planting 

 of the machine studied and calibrate it to plant a definite 

 amount, and make a report. 



Tools and Materials Needed: Monkey wrench, screw-driver, 

 rule, pair of pliers, scales for weighing, seed for testing, 

 and paper bags or other containers. 



Preliminary Instruction: The accuracy of planting deter- 

 mines to a great extent the final yield of the crop. So 

 every one should know how to test a planter, drill or 

 other seeding device. One should not only know how, 

 but should actually make a test before using the machine 

 in the field. 



