THE CLEANING APPARATUS 



the end of a rope and drop it down the lower part of eleva- 

 tor. Untie the weight and tie the rope to end of chain, 

 and while one man is pulling on the rope from above let 

 another feed the chain in from below. When chain ap- 

 pears at the top, drop the rope down the upper part of the 

 elevator, and when chain is started around the upper 

 sprocket, pull the rope from below and feed it in as before 

 to bring it to its proper place. Hook the chain at bottom, 

 see that it is on the sprocket, and tighten by means of ad- 

 justing screws at the top. Turn the pulley at top of ele- 

 vator by hand until the chain has gone once around to in- 

 sure its being free from kinks. 



The Tailings are a good indication of the work the 

 sieves are doing. They should be small in amount and 

 contain no light chaff and very little plump grain. If too 

 much good grain be returned with the tailings, ascertain 

 if it comes over the shoe sieve or through the conveyor 

 extension. If it be passing over the shoe sieve, probably 

 this sieve is overloaded with chaff, as is sometimes the case 

 when the straw is badly cut up. To remedy this, the con- 

 veyor sieve should be partly closed to let less straw through. 

 If, however, the good grain is going over the conveyor 

 sieve and through the conveyor extension, the remedy is 

 just the reverse, that is, the conveyor sieve should be 

 opened. The adjustment in separators with lip sieves is 

 made by bending the lips, but as a usual thing, they should 



be at about a forty-five degree angle. Grain returned in 

 12 



