Component Tests and General Diagnostics
Routine inspection reveals cracks in the belt ribs. The cracks do not impair the performance of the belt. The cracks are not a basis for belt replacement. However, if sections of the belt are missing, the belt should be replaced.
CAUTION: Do not use belt dressings to extend the drive belt life. The belt dressing will soften the belt and cause deterioration. Oil or grease contamination also causes drive belt deterioration.
A new drive belt allows the line on the belt tensioner gauge to be in the small range. As shown, a used belt is in the large area of the tensioner gauge.