Rotary cultivators are usually fixed on the rear cover of tractor gearbox with five studs, combined with two locating pins on the plane to ensure the correct meshing of gears. When installing, if the gears in the gearbox are facing each other, you can put the rotary cultivator into gear, push the plow shaft or rotate the clutch pulley, so that one of the gears rotates at an angle to make them align and mesh with each other.