Horizontal Screen Maintenance: Complete Schedule & Checklist
Why Maintenance Matters
- Bearing failure causes 60% of unscheduled downtime.
- Proper maintenance extends operational life up to 3x.
- Unplanned downtime costs averages $5,000-$15,000/hour in lost capacity.
The Master Schedule
Daily Checks (10 Minutes)
- Visual bolt inspection across the frame.
- Listen for bearing noise.
- Verify amplitude symmetry on all four corners.
- Check spring condition for visible cracks.
- Inspect mesh for damage or severe pegging.
- Monitor motor temperature by touch (carefully) or IR gun.
Weekly Maintenance (30 Minutes)
- Grease bearings (typically 3-5 nipples per shaft).
- Check belt tension.
- Clean drainage channels to prevent water backup.
- Inspect spray nozzles for clogs.
- Verify electrical connections.
- Document operating hours in your log.
Monthly/Quarterly Tasks
- Shaft alignment check.
- Detailed amplitude/frequency measurement.
- Structural fastener torque confirmation.
- Gearbox oil analysis/replacement.
- Motor vibration analysis.
- Screen media wear assessment and thickness measurement.
Bearing Replacement Indicators
| Symptom | Action |
|---|---|
| Temperature >90°C | Plan replacement soon |
| Rising noise level | Investigate immediately |
| Metallic debris in grease | Immediate replacement |
| Vibration increase >20% | Schedule replacement |
Expected bearing life: Usually 6,000-12,000 hours with proper lubrication.
Screen Media Replacement Guidelines
| Material | Mesh Type | Expected Typical Life |
|---|---|---|
| Limestone | Woven wire | 4-8 weeks |
| Granite | Polyurethane | 8-12 weeks |
| Wet sand | Rubber | 6-10 weeks |
| Abrasive ore | Ceramic-lined | 3-6 weeks |
Download: Maintenance Log Template
Keep your preventative maintenance on track with our printable schedule template.
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