| Problem | Cause | Correction |
|---|---|---|
| Poor quality finish | Contaminated coolant | Filter coolant and clean regularly |
| Grit collection in guard | Clean and flush inside guard periodically | |
| Traverse too fast | Reduce traverse rate | |
| Poor wheel dressing | Dress correctly before finish operations - use adequate coolant before dressing | |
| Roll speed too slow | Increase roll RPM | |
| Infeed too heavy | Reduce infeed for last few passes |
