Maintenance Management
Rohit BishtMBA O&G (2nd Year)
INTRODUCTIONAll actions necessary for retaining an item, or restoring to it, a serviceable condition, include servicing, repair, modification, overhaul, inspection and condition verification
The design life of each equipment's requires periodic maintenance.
OBJECTIVES• Minimize loss of productive time• Minimize repair time & cost• Keep productive assets in working condition• Minimize accidents• Minimize total maintenance cost• Improve quality of products
AREAS OF MAINTENANCE1. Civil maintenance- Building construction and maintenance,
maintaining service facilities2. Mechanical Maintenance- Maintaining machines and equipment's,
transport vehicles, compressors and furnaces.3. Electrical Maintenance- Maintaining electrical equipment's such as
generators, transformer, motors, telephone systems, lighting, fans, etc.
TYPES OF MAINTENANCE• Breakdown maintenance or corrective maintenance• Preventive maintenance• Predictive maintenance• Routine maintenance• Planned maintenance
BREAKDOWN MAINTENANCE
• Occurs when there is a work stoppage due to machine breakdown• Maintenance becomes repair work• Seeks to get the equipment back into operation as quickly as possible
PREVENTIVE MAINTENANCE• It is undertaken before the need arises and aims to minimize the
possibility of un -anticipated production interruption or major breakdowns.
ROUTINE MAINTENANCE• Includes activities such as periodic inspection, cleaning, lubrication
and repair of production equipment's after their service life.
PLANNED MAINTENANCE• It involves the inspection of all plant and equipment's, machinery,
buildings according to a predetermined schedule in order to service overhaul, lubricate or repair, before actual break down or deterioration in service occurs.
PREDICTIVE MAINTENANCE• In this, sensitive instruments(eg. vibration analyzers, amplitude
meters, audio gauges, optical tooling and resistance gauges) are used to predict trouble. Conditions can be measured on a continuous basis and this enables the maintenance people to plan for an overhaul.
Maintenance Costs
Maintenance Commitment
Cost
Breakdown Cost
Maintenance Costs
Maintenance Commitment
Cost
PM Cost
Breakdown Cost
Maintenance Costs
Maintenance Commitment
Cost
PM Cost
Breakdown Cost
Total Maintenance Cost
Maintenance CostsTotal costs
Breakdown maintenance costs
Cost
s
Maintenance commitment
Traditional View
Preventive maintenance costs
Optimal point (lowestcost maintenance policy)
Cost and Operational Impact of Maintenance
PLANNED MAINTENANCE
BREAKDOWN MAINTENANCE
PREDICTIVE MAINTENANCE
PREVENTIVE MAINTENANCE
ROUTINE INSPECTION
Little Substantial
Cost
of M
aint
enan
ce
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