Maintenance Management

Machine and Equipment Monitoring Type of Maintenance | Advantage | Disadvantage | Corrective | 1. Good effectiveness | 1. Need expert | (Design-Out) | 2. Long life cycle of equipment | 2. High cost, and need time to study and develop equipment | Breakdown | 1. Good for equipment which is cheap and easy to fix | 1. No sign | (On-Failure) | 2. Used when the other types of maintenance cannot be used | 2. No planned shutdown | | | 3. Need inventory of parts | | | 4. Waste the production time | Preventive | 1. Reduce the unscheduled maintenance | 1. High cost for the new parts | (Periodic, | 2. Good production plan and maintenance | 2. Need the skilled maintenance worker and department | Fixed Time ) | | 3. Only for known MTTF parts | Preventive | 1. Monitor the condition of equipment during the operation (do not waste production time) | 1. Need expert and engineering knowledge to analyze the causes of equipment conditions | (Condition-Based) | 2. Understand the condition of equipment before failures | 2. High cost for measuring instrument to monitor the signals of conditions from the machines, equipment, and parts | | 3. Easy to adjust the production plan and maintenance plan | | Maintenance Prevention | 1. Long life | Need all maintenance data in the past of the equipment in order to design and develop the reliable equipment | | 2. No need to maintenance or fix | |

Responsibility of Maintenance Department
Maintenance
Plan
To stop the failures
To prevent the failures
To correct the failures

Preventive Maintenance
Predictive Maintenance
Corrective Maintenance
Maintenance Prevention
Breakdown Maintenance

Availability
&
Maintainability

Selection of Maintenance

Machine/Equipment | Selection of Maintenance | 1. Conditions of machine and equipment can be monitored, and known MTTF | 1. Condition-based maintenance 2. Preventive maintenance 3. Breakdown