438 



Farm Mechanics. 



For use on 'the farm the advantage of truck or low wheels 

 conies in the saving of labor in .-high lifts in placing 

 manure and other materials upon the wagon, and here a 

 sacrifice of strength of the horse may advantageously be 

 made to save that of the man. A lighter draft and lower 

 lift in handling loads are secured by using the low down 

 carriage bed in the upper part of Fig. 211, than are possi- 

 ble with the very low wheeled wagons shown in the same 

 cut. 



539. Distribution of Load on the Carriage. When there 

 is nothing to prevent doing so, the load carried by the 

 wagon should be so distributed upon the wheels as to be di- 

 vided proportionately to the surface the wheels present to 

 the ground, and when the front wheels are smaller they 

 should carry a smaller load. When care is not exercised 



FIG. 211. 



in this matter there is danger, especially on soft roads and 

 in the field generally, of very materially increasing the 

 labor of hauling. When the load is heaviest on one side 

 the wheels of that side are unduly depressed, thus increas- 

 ing the draft. The tilting of the wagon in this way throws 



