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CONDITION POSSIBLE CAUSES CORRECTION LONGITUDAL BELT CRACKING 1. Belt has mistracked from pulley 1. Replace belt 2. Pulley groove tip has worn 2. Replace belt 9 GROOVE JUMPING” (Belt does not maintain correct po- 1. Incorrect belt tension 1. Inspect/Replace tensioner if nec- 2. Pulley(s) not within design toler- 2. Replace pulley(s) 3. Foreign object(s) in grooves 3. Remove foreign objects from 4. Pulley misalignment 4. Align component 5. Belt cordline is broken 5. Replace belt BELT BROKEN 1. Incorrect belt tension 1. Replace Inspect/Replace ten- 2. Tensile member damaged dur- 2. Replace belt 3. Severe misalignment 3. Align pulley(s) 4. Bracket, pulley, or bearing fail- 4. Replace defective component NOISE (Objectional squeal, 1. Incorrect belt tension 1. Inspect/Replace tensioner if nec- 2. Bearing noise 2. Locate and repair 3. Belt misalignment 3. Align belt/pulley(s) 4. Belt to pulley mismatch 4. Install correct belt 5. Driven component induced vi- 5. Locate defective driven compo- 6. System resonent frequency in- 6. Vary belt tension within specifi- TENSION SHEETING FABRIC 1. Tension sheeting contacting sta- 1. Correct rubbing condition 2. Excessive heat causing woven 2. Replace belt 3. Tension sheeting splice has 3. Replace belt CORD EDGE FAILURE 1. Incorrect belt tension 1. Inspect/Replace tensioner if nec- 2. Belt contacting stationary object 2. Replace belt 3. Pulley(s) out of tolerance 3. Replace pulley 4. Insufficient adhesion between 4. Replace belt VA ACCESSORY DRIVE 7 - 7 |