| • | Bad welds |
| • | Scoring on the band contact surface |
| • | Heat damage |
| • | Dishing or flatness of band surfaces |
| • | Bushing cracks, damage, or scoring |
| • | Damage or cracks |
| • | Seal grooves for burrs, nicks, or distortion |
| • | Wear or burning |
| • | Backing plate for damage, cracks, or burning |
Important: The ball check valve must be in its seated position before you perform the leak test.