104 SCIENCE OF SUCCESSFUL THRESHING. 



barns and it is necessary to back the engine more or less. 

 The engine tender does what its name implies, that is, it 

 keeps a supply of coal and water near at hand. 



Tank Pumps. At least one tank with each outfit should 

 have a tank pump, with a capacity of about two barrels a 

 minute. The pump is of use not only in filling the tank, but 

 also in rapidly transferring water from it to the platform 

 tank, engine tender, or barrels. When equipped with a 

 sprinkling hose, it is also useful in washing out the boiler. 



Attaching "Case" Tender. Remove the tank from under 

 the platform. Place the tender in position behind the engine 

 and put in the draw-pin. Turn the front axle of the engine 

 square, measuring on each side with a string or tape from 

 the traction wheel of the engine. Place the tender axle 

 square, measuring from the traction wheels in like manner. 

 Now connect the steering chains. They pass from the tender 

 axle, above the step, along the sides of the fire-box and pass 

 over the reach-rod, crossed, the right chain going to the 

 left end and the left chain to the right end of the front axle. 

 An eye-bracket, (56R), is placed on each side of the fire- 

 box, near the bottom, through which the chains pass. To 

 locate the holes for bolting these on, hold one of them in 

 position, (with the bolt holes down), between the second 

 and third rivet from the front, in the horizontal row of 

 rivets along the sides, so that the center of the bolt holes 

 will be four and three-eighths inches from the bottom of the 

 sheet. Mark the holes through the casting and drill them 



