FARM MACHINERY AS AN ECONOMIC FACTOR 267 



of care of the machinery. All three of these factors should 

 have the serious attention of every farmer at the present 

 time. Every machine should be adequate for the use for 

 which it is intended. It is very easy to get a machine that 



FIG. 304. Checking up machinery for repairs, 

 is too small or too large to be efficient for a particular use. 

 A great many tractor failures have been due to either the 

 tractor's being too large or too small for a particular farm 

 operation. To use a tractor of 20 to 30 H. P. to drive a 

 pump requiring only 2 H. P. is a mistake often made. It 

 is also as poor economy to operate a single-row corn planter 



