PROJECTS IN FARM MACHINERY OPERATION 285 



2) Drive in stake, attach check wire and unreel it from the 

 drum the first trip across the field. Place stake at oppo- 

 site side of field so it will be directly behind the planter 

 tongue after it has been turned into position, and draw 

 check wire up to proper tightness as directed by in- 

 structor. 



3) Place check wire in trip, set the openers in position, 



FIG. 307. Planting corn. 



lower marker in place and drive across the field. Note 

 if planter is dropping. 



4) Observe extreme care to make a straight row the first 

 time across the field. After turning into position, change 

 stake and draw check wire up to proper tightness. Follow 

 marker track with tongue directly above it for second 

 trip across field, and continue as outlined above. 



