Maintenance management involves planning, scheduling, and executing repair and preventive maintenance activities to keep industrial plants operating at a specified level. The objectives of maintenance management include minimizing downtime and costs from failures, and maximizing the life of capital assets. There are three main types of maintenance: breakdown maintenance which occurs after equipment fails; preventive maintenance which uses routine actions to prevent failures; and predictive maintenance which continuously monitors equipment using sensors to predict and prevent future issues. Proper maintenance management is important for a company's costs, quality production, safety, and competitiveness.
Reliability and Maintenance in production ManagementNazneen sheikh
This ppt may help you to get a clear picture about reliability and maintenance in Production Management.
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Nazneen Sheikh
A presentation on TPM and its objectives, goals, benefits, pillars and other aspects have been explored as well as its relation to 5s & visual. In the end, step by step implementation of TPM, losses & OEE, these tools also have been shown & discussed.
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Credits:
NJM
MM
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Definition, types of corrective maintenance, steps and cycle;
Measures of corrective maintenance are: Mean Corrective Maintenance Time , Median Active Corrective Maintenance Time, Maximum Active Corrective Maintenance Time.
Then different models : a system that can either be in up (operating) or down (failed) state; a system that can either be operating normally or failed in two mutually exclusive failure modes; a system that can either be operating normally, operating in degradation mode, or failed completely; a two identical-unit redundant (parallel) system. At least one unit must operate normally for system success.
Reliability and Maintenance in production ManagementNazneen sheikh
This ppt may help you to get a clear picture about reliability and maintenance in Production Management.
Feedback is a must!!!1
Regards.
Nazneen Sheikh
A presentation on TPM and its objectives, goals, benefits, pillars and other aspects have been explored as well as its relation to 5s & visual. In the end, step by step implementation of TPM, losses & OEE, these tools also have been shown & discussed.
If you want to help or donate please donate at my paypal:
dyokimura@gmail.com
Credits:
NJM
MM
SUPPORT ME:
https://www.buymeacoffee.com/dyokimura6
CHECK MY GAMING CHANNEL:
https://www.youtube.com/channel/UCoKOObshfyyxhVkw1VjyQNA
Definition, types of corrective maintenance, steps and cycle;
Measures of corrective maintenance are: Mean Corrective Maintenance Time , Median Active Corrective Maintenance Time, Maximum Active Corrective Maintenance Time.
Then different models : a system that can either be in up (operating) or down (failed) state; a system that can either be operating normally or failed in two mutually exclusive failure modes; a system that can either be operating normally, operating in degradation mode, or failed completely; a two identical-unit redundant (parallel) system. At least one unit must operate normally for system success.
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This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
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For more information, visit-www.vavaclasses.com
2. Meaning of Maintenance
“It refers to that function of production
management concerned with day to day problem
of keeping physical plant in good operating
condition.”
3. Maintenance Management
It involves maintenance planning, maintenance
scheduling, execution of maintenance activities
(repair, breakdown and preventive maintenance)
and also controlling costs of maintenance.
4. “MM is concerned with direction and organization
of resources in order to control availability and
performance of industrial plant to some specified
level”
5. Characteristics of MM
It is restorative function of production/operation
management
It must address to following question:
• What is to be maintained?
• How is maintenance to be done?
• Where is the maintenance?
• Who does the maintenance?
6. Objectives of MM
Minimizing loss of productive time because of
failure
Minimizing repair time and repair cost
Minimizing any loss due to production stoppages
Minimize accidents by regular inspection
Minimize total maintenance cost which include
cost of repair, inventory carrying cost ,spare parts
inventory
Maximize life of capital asset
Maximize efficiency and economy in production
through use of facilities.
8. Breakdown /corrective/remedial
maintenance
It occur when machines/equipment fail and must be
repaired on urgent basis i.e. repairs are made after the
eq. is out of order
• Eg- electric motor will not start, a conveyor belt is ripped, a shaft has broken
Causes of breakdown
• Failure to identify and replace worn out parts
• Lack of lubrication
• Indifference towards minor default
• Indifference towards vibration
• Inefficient or neglected cooling system
• Too low or high voltage
• Use of wrong or sub-standard fuel
9. Advantages –
maintenance cost low
Replacement cost low
Saves inspection time
Disadvantages-
Results in dislocation of production process
Causes delay or reduction in output
Results in loss of profit because wages are paid for
idle time
Failure of machine may cause accidents leading to
losses and troubles
10. Preventive /Routine maintenance
These are routine actions which are carried out to
anticipate breakdowns and to prevent them
before they actually occur.
Routine actions can be taken monthly, quarterly,
yearly and two-yearly
The underlying principle-
PREVENTION IS BETTER THAN CURE
Aim – to minimize possibility of unanticipated or
major breakdowns
11. Advantages -
• It result in consequent reduction in production losses
• Reduction in no. of major repair
• Reduction in no. of accidents
• Reduction in inventory of spare parts
• Improvement in product quality
Disadvantages-
• Wages of preventive maintenance technicians and staff
• Minor cost such as record keeping
• Instruments used to monitor conditions
12. Ways of preventive maintenance
• Maintenance task are
performed while machines
are in operation
• Eg- checking meter,
oiling/lubrication
Running
maintenance
• Maintenance task are
performed during shutting of
machine
• Eg-chemical industries
where whole system require
cleaning before restarting
Shut-down
maintenance
13. Predictive Maintenance
It is modern concept under which firm’s facilities are
continuously monitored and regularly inspected to
ascertain the operational efficiency of machines
It is part of preventive maintenance which involves
identification of future problems before they occur
In this , sensitive instruments( e.g.. Amplitude
meters, vibration analyzers, resistance gauges) are
used to predict trouble
14. Advantages
• Increased operational life
• Better quality products
• Energy saving
• Improved worker safety
• Allow prior corrective actions
Disadvantages
• Increased investment in diagnosis and staff
training
15. Importance of MM
Help in not losing market share
Good MM is important for company’s cost control
Help in producing high level of quality
Prevent breakdown
Competitive advantage
16. Impact of poor maintenance
Labour costs per unit rise bcoz of ideal labour
Idle machine hours
Poor quality production
Cause accident / injuries to workers
Shorter life of asset
Failure to meet promised delivery order
Increase in scrap