In order to ensure continuous operation, the efficiency of machinery and equipment, maintenance work is an important role in maintaining the stability of the production process. However, choosing what type of maintenance that can save money while still keeping the equipment operating smoothly is a challenge for managers.
There are three usual methods used for machine maintenance:
1. Periodic maintenance.
The maintenance will be based on the manufacturer's specifications and status of equipment to provide a plan for replacing fixed machine parts.
2. Repair, maintenance after machinery / equipment occur failure: use the machine until it is damaged and only perform simple maintenance tasks such as repairing, replacing grease, repairing, reconstructing the machine after failure.
3. Maintenance by machine condition: The condition of the machine will be monitor. Only plan to stop the machine to replace, repair after make diagnosis of machine condition before the machine is damaged.
Considering to choose the maintenance method for each machine type is not easy. Because of consider should be given to factors such as how long it takes to use the machine, how it is used, how much it costs to buy machinery, etc.
Actually, indirect maintenance costs are caused by equipment failure, equipment damage, productivity losses, safety and poor working environment, etc. Much greater than maintenance costs if detected early and prevented.
A combination of machine-based maintenance and periodic maintenance, called Preventive Maintenance (PM), will help solve this problem.
Preventive maintenance (PM) is a method of maintaining balance between two factors: periodic maintenance and monitoring of equipment, PM will combine maintenance with saving device information. The purpose of PM is to “prevent” maintenance problems or failures by following routine and comprehensive maintenance procedures. The purpose is to achieve fewer, shorter, and more predictable failure.
Some advantages of PM:
PM does have some drawbacks:
Despite these drawbacks, PM has proven generally reliable in the past and is still the core of most maintenance programs
In modern industrial production, preventive maintenance has been proven to help optimize costs by spending only a small amount of money and time on the benefits obtained in an indirect way when prevent failures. Furthermore, preventive maintenance will ensure the reliability of the equipment and is the core of most maintenance programs.