CHAPTER XVIII. 



SOME SEPARATOR AND 

 ENGINE "DONT'S." 



Don't use too many concave teeth in dry straw. 



Don't run with loose cylinder teeth. 



Don't try to thresh tough grain with too few 

 concave teeth, or with the concave set too low. 



Don't run belts too loose or too tight. 



Don't forget to keep all nuts tight. 



Don't run journals too loose or too tight. 



Don't have too much blast at the back end of the 

 sieve. 



Don't have too little blast at the front end of the 

 sieve. 



Don't try to do good work with the separator set 

 out of level. 



Don't allow the separator to rock back and forth 

 while threshing. 



Don't allow pitchers to overcrowd the separator. 



Don't allow the separator to run with too little 

 grain. 



Don't use too many sieves. 



Don't return many tailings to the cylinder. 



Don't have too much end play in the cylinder 

 boxes. 



SOME ENGINE "DON'TS." 



Don't carry too deep a fire. 

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