INDIAN RAILWAYS MAINTENANCE MANUAL FOR DIESEL LOCOMOTIVES - PART 67
Document No:
Chapter –12 Reliablity Centered Maintenance
Version No: 1.0-d0
Date Issued: dd/mm/yyyy
Document Title: MANUAL MAINTENANCE FOR DIESEL LOCOMOTIVES
Revised 2013
Printed: 2015/03/08
Page 260 of 303
short-term increase in maintenance costs .The increase is relatively short-lived. The
cost of reactive maintenance decreases as failures are prevented and preventive
maintenance tasks are replaced by condition monitoring. The net effect is reduction
of reactive maintenance and a reduction in total maintenance costs.
12.10.3
Scheduling
- The ability of a condition monitoring program to forecast certain
maintenance activities provides time for planning, obtaining replacement parts,
making the necessary logistical arrangements (i.e., notifying occupants of
equipment downtime) before the maintenance is executed. RCM reduces the
unnecessary maintenance performed by a calendar-based preventive maintenance
program, which tends to err consistently on the "safe" side in determining time
intervals between maintenance tasks.
12.10.4
Equipment/Parts Replacement
- It obtains the maximum use from the equipment.
With RCM, equipment replacement is based on equipment condition, not on
calendar. This condition based approach to maintenance extends the life of the
facility and its equipment.
12.10.5
Efficiency/Productivity
In summary, the multi-faceted RCM approach promotes the most efficient use of
resources. Equipment is maintained as required by its characteristics and the
consequences of its failures.
- Safety is the primary concern of RCM. The second most
important concern is cost-effectiveness. Cost-effectiveness takes into consideration
priority or mission criticality and then matches a level of cost appropriate to that
priority. The flexibility of the RCM approach to maintenance ensures that the
proper type of maintenance is performed when it is needed. Maintenance that is not
cost-effective is identified and not performed.
12.11 RCM on a Life Cycle
RCM must be considered throughout the life cycle of a component if it is to achieve
maximum effectiveness. The four recognized major phases of an equipment’s life cycle
are:
• Planning
• Design
• Manufacture
• Operations and Maintenance.
Planning and Design stages contribute to the maximum costs in a components life cycle
cost.
12.12 Use of Reliability Centered Maintenance by RDSO:
12.12.1
As stated earlier, data collection of failures of the components with reasons thereof,
is the core activity of the Reliability Centered Maintenance. For this purpose,
RDSO has made a four digit codification of component failures as per which users
(Zonal Railways) have to submit information of components failures regularly to
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