Wooden Farm Toys for Haymaking

Step 4 The front turns but does not come out

 The front wheel assembly can be turned to make the tractor follow a curved path.  Notice the yellow arrow.  It points to a nail that keeps the wheel assembly from coming out.  Notice the red lines.  They give an approximation of how I ground an indentation around the vertical part of the wheel assembly so the nail keeps the front wheels from falling out of the bottom of the tractor.