The article describes the methodology and some results of the research carriedout in Slovenia which present a novelty in establishing the technical parameters of a tractor during the skidding of timber. An adapted measuring chain was used to measure the values of individual technical parameters and the dynamics arising during skidding on skid track. The research included the following tractors: Woody 110 and AGT 835 T with hydrostatic and mechanical power transmission. The values of load on tractor axes, of pulling force and slip can be of additional help in selecting the machine - with regard to the work conditions it is possible to decide on the suitability and sensibility ofa certain tractor choice.
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