This study examines the vibration and noise levels produced by two different tractor engines made of different specifications such as varying horse power capacity, number of cylinders, cubic capacity of engines etc. Readings of sound level were taken at an arm’s length, 10m and 30m from the engines and the vibration levels on tractor at different engine speeds on surfaces of different tractor components in X, Y and Z directions. A digital Vibration meter VB-8201HA and digital sound level meter SL 4001 was used to measure vibration and noise levels produced by the tractors. |