Technical Paper
Sound Level Tests of Agricultural Tractors
1972-02-01
720719
Sound level at the operator station and at a bystander position 7.5 m from the center line of the vehicle has been measured at the Nebraska Tractor Test Laboratory on 67 agricultural tractors. Sound values at 100, 75, and 50% drawbar load are reported. Results indicate that farm tractor manufacturers have made significant progress in reducing sound levels to acceptable values.