WATER-TANKS. 



105 



with a nine-sixteenths inch drill. This will bring the heads 

 of the one-half inch bolts inside of the ash pan. The chain 

 brackets on the front axle of the engine are placed so that 

 the chain is above the axle. The position of these brackets 

 is given in the table below. 



The chains must not be allowed to get too loose. The 

 wear may be taken up by means of the turn-buckles. If 

 they are too taut, the engine will steer hard. When con- 

 nected according to these directions, the tender will retain 

 its alignment while following the engine backward or for- 

 ward, around any curve. 



Attaching to Other Engines. For engines of other make, 

 to find the distance the chains should be apart on the front 

 axle, first place the tender in position and place the front 

 axle of the engine and the axle of the tender square. Then 

 measure the distance of the tender axle from the rear axle 

 of the engine and multiply this number by the distance in 

 inches between the chain connections on the tender axle, 



