See Figures 1 through 5
Inspect the belts for signs of glazing or cracking. A glazed belt will be perfectly smooth from slippage, while a good belt will have a slight texture of fabric visible. Cracks will usually start at the inner edge of the belt and run outward. All worn or damaged drive belts should be replaced immediately. It is best to replace all drive belts at one time, as a preventive maintenance measure, during this service operation.
See Figures 6 through 17
It is a good idea, therefore, to visually inspect the belts regularly and replace them, routinely, every two to three years.
Except Sonata V6
Belts are normally adjusted by loosening the bolts of the accessory being driven and moving that accessory on its pivot points until the proper tension is applied to the belt. Some models also have belt tension adjusting bolts that are used to take up any slack in the belt. The accessory is held in this position while the bolts are tightened. To determine proper belt tension, you can purchase a belt tension gauge or simply use the deflection method. To determine deflection, press inward on the belt at the midpoint of its longest straight run. The belt should deflect (move inward) 0.35-0.43 in. (9-11mm). Some long V-belts and most serpentine belts have idler pulleys which are used for adjusting purposes. Just loosen the idler pulley and move it to take up tension on the belt.