This study aims to evaluate the performance of a harvester 911.3 X3M in harvesting operations at different slope terrain classes and directions (upward and downward), as well as the movements in the various machine operations. This harvester was developed in Germany to operate on slopes of up to 40º and has not yet been used in forest plantations in Brazil. Results showed that the productivity did not decrease with increased slope, and upward and downward directions of operation did not influence the volume of timber harvested per hour.
mechanization; steep terrain; harvesting operation