There were two types of wheels that used rubber tires on the 290 planter. The earlier rubber tired units had spoke wheels and required that you remove two cap screws at the ends of the axle then lift the planter until the axle and wheel drop down. Be sure to remove the drive chain! The later units used a four bolt press steel wheel but removal of the axle and hub was the same then the four lug bolts are removed to separate the wheel from the hub.