FIELD: agricultural engineering; forage harvesters. SUBSTANCE: proposed wheeled power gear contains frame with fitted-on control cabin, internal combustion engine connected with controllable hydraulic pump, steering wheel axle and driving wheel axle furnished with hydraulic motors. Wheeled power gear is furnished with second controllable hydraulic pump connected with internal combustion engine. Side drive system of each wheel includes controllable hydraulic pump and hydraulic motor connected with pump by main lines. Side hydraulic system of wheel drive are interconnected by hydraulic connector provided with device to control hydraulic coupling between side hydraulic systems of wheels. EFFECT: dispensing with members of mechanical transmission, enlarged range of speed under stepless mode of operation. 2 cl, 2 dwg
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