See Figures 1, 2, 3, 4 and 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, 7, 8, 9, 10, 11, 12, 13 and 14
Belt tension can be checked by pressing on the belt at the center point of its longest straight run. The belt should give about 1 / 4 - 1 / 2 in. If the belt is loose, it will slip. If the belt is too tight it will damage bearings in the driven unit. Those units being driven, such as the alternator, power steering pump or compressor, have a bolt which when loosened allows the unit to move for belt adjustment. Sometimes it is necessary to loosen the pivot bolt also, to make the adjustment.
REMOVAL AND INSTALLATION
To remove a drive belt, simply loosen the accessory being driven and move it on its pivot point to free the belt. Then, remove the belt. If an idler pulley is used, it is often necessary, only, to loosen the idler pulley to provide enough slack to slip the belt from the pulley.
It is important to note, however, that on engines with many driven accessories, several or all of the belts may have to be removed to get at the one to be replaced.