| Problem | Cause | Correction |
|---|---|---|
| Chatter marks | Wheel too hard | Use softer wheel |
| Spindle material not rigid enough | Replace spindle | |
| Defective belt | Replace belt | |
| Wheel out of balance or truth | Balance and/or true wheel...avoid use of bushed wheel | |
| Dust or other particles inside wheel pulley motor | Clean inside surface of pulleys | |
| Worn spindle machine not on solid foundation | Replace spindle - insure machine is properly aligned and not adjacent to heavy vibrating machines |
