This V-belt transmits power from the engine or main drive to the inclined conveyor that carries crop material into the threshing section. It runs on pulleys in the drive system and maintains tension to prevent slip under varying load. A worn or stretched belt causes conveyor speed loss, leading to uneven feeding and reduced throughput. This component is manufactured to match the original profile and length so that it seats correctly in the pulley grooves without requiring shimming or adjustment beyond standard tensioning. On installation, verify the belt is not twisted and adjust the tensioner to the specified deflection.