Carefully and completely examine the characteristics and evidence available to you.
Seal Faces:
Overall corrosion – chemical attack
Leaching
Abnormal grooving
Erosion damage: Is the damage localized or does it have a pattern?
Excessive pitting
Sludging or bonding
Thermal damage or other evidence of excessive heat
Secondary Seals (gaskets)
Extrusion
Chemical attack
Vibration
Excessive volume change
Thermal attack
Drive Mechanisms:
Wear patterns normal or abnormal
Uneven load distribution
Excessive wear from vibration
Carefully and completely explore all possible solutions to the problem. Select the best remedy, taking into account cost, availability, benefit and return on investment. Use your seal vendor as a resource.