| 1. Sealing System Leakage Analysis Chart (I.D Leakage) |
| 1.1 Lip Wear | Rough shaft surface | Insufficient lubrication | High internal pressure | Contaminants |
| 1.2 Eccentric Wear | Seal cocking | Poor alignment |
| 1.3 Lip Damage | Improper shaft chamfer | Improper installation | Improper lip contact | Contaminants |
| 1.4 Lip Hardens | Insufficient lubrication | High temperature | High internal pressure |
| 1.5 Softening or Swelling | Improper lip material |
| 1.6 Inverted Lip | Improper shaft chamfer | Improper installation | High internal pressure |
| 1.7 Spring Falls Off | Improper shaft chamfer | Improper installation |
| 1.8 Tears in Lip Area | Improper removal | High internal pressure |
| 1.9 Seal Distorts | Improper installation |
| 1.10 No Wear on Seal Lip | Shaft defect | Rotating direction | Offset | Wrong installation |
| 2. Sealing System Leakage Analysis Chart (O.D Leakage) |
| 2.1 Seal Distorts | Improper installation tool |
| 2.2 Cocked Seal | Bore size too small | No bore chamfer |
| 2.3 Seal O.D. Distorted or Locked | Bore size too small | Improper installation tool | No bore chamfer |
| 2.4 No Wear on Seal Lip | Bore surface damage | Bore surface too rough |
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