In an industry, cost of unscheduled stoppage of an equipment is very high,
in terms of loss of production and money. Maintenance is an activity carried out
to avoid unscheduled stoppages and breakdowns of the equipment, to improve availability
and life of plant and machineries, thereby improving the performance of the industry.
The effectiveness of production is highly dependent on quality of maintenance.
One of the key factor for the success of an industry is an effective maintenance
maintenance management can improve existing capacity utilization rather than going
in for additional capacities to meet the ever increasing demand of a large number
of products and services.
is only viewed as a repair function, however it is a combination of any actions
carried out to retain an item in or restore it to an acceptance condition.
principal objectives of maintenance activity are:
To maximise the availability and reliability of all assets (equipment, machinery)
2. To extend the useful life of assets by minimising wear and tear and deterioration.
3. To ensure operation readiness of all equipments required for emergency
use at all times.
4. To ensure the safety of personnel/using facility.
The availability (A) of a plant can be defined as:
A = Tup / Tup + Tdown
= The cumulative time of operation in the normal working state
T down = The
Reliability - The probability that a unit will function
normally when used according to specified conditions for at least a stated period
Maintainabilty - The probability that a failed unit is put back to
satisfactory, operable condition in a given down time.
a changing world of competition the survival of industries depends on quick decision
making and effective management of maintenance function. To accomplish the above
objective presently "Computer Aided Maintenance Management Software Packages"
are available for the maintenance managers.
System is a reliable tool available to plan effectively complete tasks on schedule
and make quick reviews. This can also be treated as part of "ERP" software.
CAMM system provides:
Decision support for equipment
" Reliability management
time data capture for condition monitoring of equipment
" Work orders
" Planning spares requirements
" Planning maintenance
" Monitoring of labour productivity
" Automatic sequencing of inspections
typical planned maintenance package consists of three modules:
administration and control
3. Maintenance operations
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