Daily routine care, preventive (scheduled) maintenance and breakdown maintenance compared.
Maintenance means keeping machines and equipment in good working condition so that they work safely, accurately and for a long life.
Types of maintenance
| Type | Meaning |
|---|---|
| Breakdown (corrective) | Repair after the machine fails. Causes sudden stoppage and high cost. |
| Routine maintenance | Simple daily/weekly work – cleaning, lubrication, tightening, checking. |
| Preventive maintenance | Planned, scheduled work done before failure – inspection, adjustment, replacement of worn parts. |
| Predictive (condition-based) | Checking condition (vibration, temperature, noise, oil) to predict failure. |
Routine maintenance – daily checklist
- Clean the machine – remove chips, dust and coolant.
- Check oil levels and lubricate as per the lubrication chart.
- Check guards, belts, switches and coolant.
- Report unusual noise, heat or vibration.
- Oil the slideways at the end of the day.
Preventive maintenance
- Done as per a schedule – weekly, monthly, quarterly, yearly.
- A history card / record is kept for each machine.
- Includes checking alignment, belt tension, bearing condition, changing oil, replacing worn parts.
Benefits of preventive maintenance Fewer breakdowns, longer machine life, better accuracy, safer working, lower total cost.
Quick Revision
- Breakdown = after failure; preventive = scheduled before failure.
- Routine: cleaning, lubrication, checking.
- Keep a history card for each machine.
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