Proper tension keeps blades aligned, prevents pushing hair, and extends edge life. Use this troubleshooting guide to correct issues quickly.
Quick Diagnostic
| Symptom | Likely cause | Fix |
|---|---|---|
| Blades slam shut during drop test | Tension too loose | Tighten 1–2 clicks; re-test. |
| Blades stay fully open | Tension too tight | Loosen gradually until blade falls two-thirds. |
| Crunching sound mid-cut | Dirt in pivot or burrs | Clean, oil, and test; if persists, schedule sharpening. |
| Hair bends or pushes | Dull edge or tension imbalance | Adjust tension; if unresolved, send for service. |
Adjustment Steps
- Clean and dry the shear before adjusting.
- Hold the shear upright; open to 90°.
- Use the manufacturer’s dial or key to turn in 1/8 increments.
- Perform a drop test after each adjustment.
- Log the adjustment date in your maintenance tracker.
When to Escalate
- Pivot screws that spin freely indicate stripped threads—contact the manufacturer.
- Tension discs that skip clicks or bind require professional service.
- Persistent pushing after adjustments signals edge degradation.