tandem disc harrow

Device with four disc trains arranged in two opposing V patterns; it loosens the soil that has already been plowed and eliminates weeds.

draw bar hitch

Device that secures the tandem disc harrow to the tractor’s towing hitch.

hydraulic hose

Tube connected to the tractor’s hydraulic coupler that uses a fluid (oil) to transmit power from the engine to the device’s mechanisms.

disc

Dish-shaped part that breaks up clods of earth.

height adjustment

Crank for adjusting the depth of the discs’ penetration into the soil.

frame

Tandem disc harrow’s metal structure.

disc arm

Metal structure to which the discs are attached.