“…The results of these researches made it possible to outline ways for increasing the traction and coupling properties, reduce the technogenic influence on the soil of tractor movers, and improve the efficiency of using the machine-tractor units (MTU). At the same time, problem of increasing the agrotechnical passability of 4-wheel tractors has not been practically resolved [3,6,11,12] (a) (b) Solution of issues the applying in cotton growing the high-clearance 4-wheeled tractors of new generation with high functional capability, adapted to loads of various types and sizes, with wide speed range of use for fulfilling the agrotechnological requirements of agricultural operations in various operating conditions, when aggregated with high-clearance of wide-mounted machine instruments (seeding and cultivating machines). It requires the increased traction potential, is actual task and needs to implement scientific-research and trial-design (experimental) activities.…”