power-driven vehicle, either wheeled or tracklaying, which has at least two axles, whose function depends essentially on its tractive power, and which is specially designed to pull, push, carry or act, suure läbivusega traktor, mille ehitus võimaldab langetatud tüvesid juurde tõmmata, peale laadida, tee äärde vedada ja seal maha laadida