PROJECTS IN FARM MACHINERY REPAIR 317 



2) Chains and Sprockets Replace badly-worn or broken 

 sprockets. See that they are aligned by sighting along 

 the face. Adjust chain tightener so there will not be too 

 much play. 



3) Reel Renew slats if broken. Examine bearings. If 

 they are badly worn, renew them. Take up all lost mo- 

 tion in reel levers. 



4) Gears and Bearings Examine all gears for wear, and if 

 badly worn, replace with new ones. Adjust to mesh 

 where possible. Renew bearings where badly worn. 



5) Binder Attachment The binding attachment is the 

 most complicated device on the binder. Replace all 

 broken or badly-worn parts. See that the tying device is 

 timed to work properly in tying bundles. Use instruc- 

 tions for particular machine furnished by manufacturer. 



287. Belt-Driven Machinery. 



Requirements: To repair and adjust at least one belt-driven 

 machine. It may be a threshing machine as outlined, or 

 another type of machine. The feed mills, silage cut- 

 ters and corn shellers, all come in this class. The tools 

 needed are the same as in previous projects. 



Preliminary Instruction : A separator that has not been care- 

 fully overhauled will cause loss of time and waste of 

 grain. This is a job that should be done some weeks be- 

 fore the threshing season is on, in order that if there is 

 need of any parts, they can be secured and installed 

 without causing a delay. The same general principles 

 as outlined for overhauling a separator apply to other 

 belt-driven machines. It is always a good idea to study 

 carefully the instruction books furnished by the manu- 



