Correct Answer - Option 3 : reactive maintenance
Maintenance:
Maintenance is a set of organized activities that are carried out in order to keep an item in its best operational condition with minimum cost acquired.”In general, Maintenance means to hold, keep, sustain or preserve the building, machine or structure to an acceptable standard.
Objectives of Maintenance Program
- Maximising production or increasing facilities available at the lowest cost and at the highest quality and safety standards.
- Reducing breakdowns and emergency shutdowns.
- Optimizing resources utilization.
- Reducing downtime.
- Improving spares stock control.
- Improving equipment efficiency and reducing scrap rate.
- Minimizing energy usage.
Types of maintenance:
Reactive Maintenance:
- Reactive maintenance is basically the “run it till it breaks” maintenance mode.
- No actions or efforts are taken to maintain the equipment as the designer originally intended to ensure design life is reached.
- Advantages to reactive maintenance can be viewed as a double-edged sword. If we are dealing with new equipment, we can expect minimal incidents of failure.
- If our maintenance program is purely reactive, we will not expend manpower dollars or incur capital costs until something breaks.
Preventive Maintenance:
- Actions performed on a time- or machine-run-based schedule that detect, preclude, or mitigate degradation of a component or system with the aim of sustaining or extending its useful life through controlling degradation to an acceptable level.
Proactive Maintenance:
- The latest innovation in the field of predictive maintenance is so-called pro-active maintenance, which uses a variety of technologies to extend the operating lives of machines and to virtually eliminate reactive maintenance
Predictive Maintenance:
- Predictive maintenance can be defined as follows: Measurements that detect the onset of a degradation mechanism, thereby allowing causal stressors to be eliminated or controlled prior to any significant deterioration in the component physical state. Results indicate current and future functional capability.
