MAINTENANCE 24.6.5 CHECK AIR CONDITIONER COMPRESSOR BELT TENSION, ADJUST Checking The belt deflection should be from 16 to 20 mm (0.6 to 0.8 in.) when pressed with the thumb at a force of 98 N (22 lbf) at a point midway between the air conditioner compressor pulley and the fan pulley. When the belt tension gauge is used, tension should remain in the range from 353 to 530 N•m (79 to 119 lbf). Check each pulley for damage and groove wear. If the belt is touching the bottom of the groove, replace the pulley. Adjusting Loosen the bolt (1) and move the compressor (2) to adjust the belt tension. When adjusting the belt tension, use a wrench. Do not press directly on the compressor with a bar.
If the specified belt deflection cannot be obtained, the belt is stretched and must be replaced. WA450-3MC 3-44