Field tractive performance comparisons between a tractor operated in the 2WD and 4WD mode

Abstract

Field tests were conducted to evaluate and compare the tractive performance of a tractor when operated in the two and four-wheel drive mode. Traction data were obtained form drawbar tests on five different soil surfaces. Tractive performance evaluation were made by comparing the relationships of slip, dynamic traction ratio and tractive efficiency. Results showed the more the soil is disturbed the lowest are the tractive performance. Also, the highest performance was obtained when the tractor was operated in the four-wheel drive mode.