Maintenance & its types

2,845 views 34 slides Jan 23, 2018
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About This Presentation

Maintenance & its types


Slide Content

Maintenance & its types

What is maintenance The process of preserving a condition or situation or the state of being preserved  . ایک حالت یا صورت حال کو برقرار رکھنے یا محفوظ ہونے کی حالت کا عمل

Maintaining, repairing, and replacing if necessary devices, equipment, machinery, building infrastructure, and supporting utilities in industrial, business, governmental, and residential installations

Types of Maintenance

Breakdown maintenance It means that people waits until equipment fails and repair it. Such a thing could be used when the equipment failure does not significantly affect the operation or production or generate any significant loss other than repair cost.

Preventive Maintenance IT IS A DAILY MAINTENANCE (CLEANING, INSPECTION, OILING AND RE-TIGHTENING), DESIGN TO RETAIN THE HEALTHY CONDITION OF EQUIPMENT AND PREVENT FAILURE THROUGH THE PREVENTION OF DETE .

Predictive Maintenance This is a method in which the service life of important part is predicted based on inspection or diagnosis, in order to use the parts to the limit of their service life. Compared to periodic maintenance, predictive maintenance is condition based maintenance. It manages trend values, by measuring and analyzing data about deterioration and employs a surveillance system, designed to monitor conditions through an on-line system.

Corrective It improves equipment and its components so that preventive maintenance can be carried out reliably. Equipment with design weakness must be redesigned to improve reliability or improving maintainability.

Periodic maintenance: Maintenance carried our according to predetermined schedule. It may be quarterly, halfyearly etc.

Other Considerations When designing the Maintenance Plan should be taken into account two important considerations affecting some equipment in particular. Firstly, some equipment are subjected to legal rules that regulate their maintenance, forcing them to perform certain activities with an established frequency. Secondly, some of the maintenance activities can not be performed with the regular maintenance equipment (either their own or hired) because it requires knowledge and / or specific resources that are only up to the manufacturer, distributor or a specialist team.

Some equipment are subjected to rules or regulations by the Administration. Above all, there are equipment that are hazardous to people or the environment. The Administration requires the completion of a series of tasks, tests and inspections, and some of them must be performed by companies duly authorized to carry them out. These tasks must necessarily be incorporated into the Maintenance Plan of the equipment, whatever model you decide to apply. Some of the equipment subjected to this type of maintenance are: Equipment and devices under pressure Installation of High and Medium Voltage Cooling Towers Certain lifts: service or people Vehicles Fire Prevention Facilities Storage tanks of certain chemicals

Benefits of Maintenance Prolonged life of company equipment Less unplanned downtime caused by equipment failure Less unnecessary maintenance and inspections Fewer errors in day-to-day operations Improved reliability of equipment Fewer expensive repairs caused by unexpected equipment failure that must be fixed quickly Reduced risk of injury

Maintenance work planning

5 things to consider as a Supervisor People Place Time Tools Equipments etc. Information

People When we talk about people we talk about people. Do I need a welder, mechanic, electrician, fabricator etc. No. of persons.

Place Nature of place. Must have information about that place

Time When we carried out maintenance (day, month etc.) How much time it will take. During shutdown or regular production activities

Tools & Equipments Inventory Do I need lifter, crane etc.

Information Information about the system

10 biggest causes of machinery breakdowns

Not reading the operator's manual

Improper maintenance

Poor electrical connections

Overrunning machine's capability

Not replacing worn parts when needed

Tightener misalignment

Improper storage

Improper weather-related use

Ignoring warning signals

Asking untrained personnel to operate equipment

How Can Preventive Maintenance Software Help? Many companies choose preventive maintenance software to coordinate all their preventive maintenance tasks because it simplifies what is otherwise a complex process. Preventive maintenance software stores a company’s maintenance data on a computer (or in the cloud) to easily keep track of all inspections, repairs and replacements. With all data conveniently stored in one place, preventive maintenance software can be used to effectively manage  work orders ,  purchase orders ,  inventory  and maintenance records. Preventive maintenance software even prioritizes maintenance tasks and gathers information a technician needs to perform maintenance work