tools for loosening the earth [4]
tiller 
Motorized machine that uses its rotating tines to turn over and loosen the soil and mix fertilizer into it.
motor 
Device converting the combustion of fuel and air into mechanical energy.
tine 
Cutting blade connected to a rotating axle; it digs into the soil to loosen it.
starter 
Hand-activated device pulling a cable to start the motor.
frame 
Metal structure of the tiller.
clutch lever 
Lever controlling the tiller’s motion and the tines’ rotation.
forward/reverse 
Mechanism for selecting the direction in which the tiller moves.
handlebar 
Arm for steering the tiller.