This V-belt drives the air-conditioning compressor from the engine crankshaft or an intermediate pulley. It sits in the front-end accessory drive system of the parent combine, transmitting rotational force to the compressor clutch. A worn or glazed belt slips under load, reducing compressor speed and causing a loss of cabin cooling capacity. The belt is constructed by Gates to match the original profile and pitch length, ensuring correct tension and alignment within the pulley grooves. On replacement, verify the belt tensioner operates freely and adjust the deflection to the manufacturer's specification.