150 SCIENCE OF SUCCESSFUL THRESHING 



attention. The machine has been tested and left the fac- 

 tory in good running order, but dirt and grit of shipment 

 by rail is liable to cause trouble and it is best to make sure 

 that all the bearings are oiled. It is of great importance 

 that these bearings be well oiled on the first run, as they are 

 somewhat rough, and consequently require more oil and 

 a longer time for it to spread over the journals. Oiling 

 a shaft as it runs, allows the oil to work in and be distrib- 

 uted over the whole bearing surface. 



It is well to use a mixture of two parts of machine oil 

 to one of kerosene for the first oiling. This will clean out 

 the bearings and leave them in good condition to receive 

 oil. The machine should be again oiled with undiluted 

 oil before threshing. When the machine has run for an 

 hour or so and everything shown to be in good order, it is 

 ready for threshing. After adjusting the concaves, check 

 board, sieves and blinds, to suit the kind and condition of 

 grain, according to the directions given elsewhere in this 

 book, grain may be run through the machine. 



Setting the Separator. The separator may do good 

 work if the rear truck wheels be a few inches higher or 

 lower than the front wheels, but it must always be level 

 cross-ways. Use a spirit level of good length on the rear 

 axle and on the sills. A little practice or calculation will 

 enable one to determine how deep a hole to dig in front of 

 the high wheel in order to bring the fnachine level when 

 pulled into it. Knowing the axles of the separator to be 



