What is Maintenance?
Industrial maintenance is the process of maintaining machines and equipment in a factory. With the development of special-purpose machine and equipment, it cost a lot more money so their idle time and downtime becoming a lot more expensive day by day. Therefore, it is important that plant machinery and equipment should be properly maintained.
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The objective of plant maintenance :
- The maintenance division of the factory ensures the availability of machines and equipment to perform their function at optimum conditions.
- The objective of the plant maintenance division is to achieve minimum breakdown and to keep the plant in excellent condition at the lowest possible cost.
- Kept the plant in such condition that, it should run without any interruption.
Importance of maintenance department :
- Depending upon the size of the maintenance department and type of production, it has a wide variety of duties.
- The maintenance department plays an important role in production because plant breakdown creates problems such as time loss, Rescheduling of production, temporary work shortages, need for overtime, inefficient productivity, etc.
- If a piece of equipment goes out of service in a flow production plant, the whole line soon comes in a halt. It results in a loss of productivity.
- The maintenance engineer inspects the plant, determines necessary changes to be made, and reports to the plant manager.
- The maintenance department involves alterations and improvement in existing equipment and building to minimize breakdown.
Types of Maintenance
- Corrective breakdown maintenance,
- Scheduled maintenance,
- Preventive maintenance,
- Predictive maintenance.
1. Corrective or Breakdown maintenance :
2. Scheduled maintenance :
3. Preventive maintenance :
When it is suitable for preventive maintenance?
- Have a critical operational function is running continuously
- Have failure modes that must be prevented with regular maintenance
- Have a piece of equipment which likelihood of failure that increases with time or use
4. Predictive maintenance :
Before establishing the predictive maintenance program within a factory, an organization must take several steps, which include:
- Analyzing the need and failure history of the equipment
- Reviewing all available records on downtime, defected equipment, losses (yield and energy), potential regulatory fines and workplace safety
- Establishing definitions and concepts as well as building a case for predictive maintenance
- Educating major stakeholders about the technique and getting buy-in
- Completing an equipment inventory and evaluative the current equipment conditions
- Selecting equipment for the program of initial implementation
- Developing system details based on individual systems and components
- Evaluating any existing preventive or predictive maintenance data
- Deciding which systems to include and what to inspect for
- Defining the program’s criticality and establishing predictive maintenance frequency and schedule type
- Evaluating the anticipated resources and assigning maintenance worker’s roles and responsibilities.