The EN 13306 Standard for Maintenance Terms. A supporting element to Lean Maintenance.

1. MAINTENANCE
EUROPEAN STANDARDS
supporting elements to lean maintenance
JOÃO PAULO PINTO @ CLT SERVICES © November 2014

2. LEAN MAINTENANCE FUNDAMENTALS BY CLT SERVICES © 2014
EN 13306:2010
 The objective of this European Standard is to define the generic terms used
for all types of maintenance and maintenance management irrespective of
the type of the item considered.
 Software maintenance only is not considered in this standard;
 It is the responsibility of maintenance management to define its strategy
according to the following main objectives:
1. Ensure availability of the item to function as required at optimum costs;
2. Consider the safety and other mandatory requirements;
3. Consider any impact on the environment;
4. To uphold the durability of the item and/or the quality of the product or
service considering the costs where necessary.

3. LEAN MAINTENANCE FUNDAMENTALS BY CLT SERVICES © 2014
FUNDAMENTAL TERMS
 Maintenance - combination of all technical, administrative and managerial actions during
the life cycle of an item to retain it in, or restore it to, a state in which it can perform the
required function.
 Maintenance management – all activities of management that determine the
maintenance objectives, strategies and responsibilities, and implementation of them by
such means as maintenance planning, maintenance control, and the improvement of
maintenance activities and economics;
 Maintenance objective – target assigned and accepted for the maintenance activities (ex.
Availability, Cost reduction, Quality, Environment preservation, Safety, Asset value
preservation);
 Maintenance strategy – management method used in order to achieve the maintenance
objectives (ex. Outsourcing and allocation of resources);
 Maintenance plan – structured and documented set of tasks that include activities,
procedures, resources and time scale required to carry out maintenance;

4. LEAN MAINTENANCE FUNDAMENTALS BY CLT SERVICES © 2014
 Required function – function, required function, or a total combination of
functions of an item which are considered necessary to provide a given service.
 Dependability – ability to perform as and when required;
 Maintenance supportability (maintenance support performance) – ability of a
maintenance organization to have the correct maintenance support at the necessary place
to perform the required maintenance activity when required;
 Operation – combination of all technical, administrative and managerial actions, that
results in the item being in use.
ITEM RELATED TERMS (not defined here)
 Item, Asset, Repairable Item, Consumable Item, Spare Part, Insurance Spare Part,
Indenture Level (level of sub-division within an item hierarchy);
PROPERTIES OF ITEMS (not defined here)
 Availability, Reliability, Intrinsic (inherent) Reliability, Maintainability, Intrinsic (inherent)
Maintainability, Conformity, Durability, Redundancy, Active Redundancy, Standby
Redundancy, Useful Life, Mean Failure Rate), Life Cycle and Obsolescence.

5. LEAN MAINTENANCE FUNDAMENTALS BY CLT SERVICES © 2014
FAILURE AND EVENTS (not defined here)
 Failure, Failure Mode, Failure Cause, Wear-Out-Failure, Ageing Failure, Degradation,
Common Cause Failures, Primary Failure, Secondary Failure, Sudden Failure, Hidden
Failure, Failure Mechanism, Severity, Criticality, Failure Criteria.
FAULTS AND STATES (not defined here)
 Fault, Fault Masking, Latent Fault, Partial Fault, Up State, Degraded State, Down State,
Disable State, External Disabled State, Operating State, Idle State, Hazardous State,
Shutdown, Software Fault.
MAINTENANCE TYPES (not defined here)
 Preventive Maintenance, Predetermined Maintenance, Condition based Maintenance,
Predictive Maintenance, Corrective Maintenance, Deferred Maintenance, Immediate
Corrective Maintenance, Scheduled Maintenance, Remote Maintenance, On Line
Maintenance, On Site Maintenance, Operator Maintenance, Maintenance Level,
Maintenance Outsourcing.

6. LEAN MAINTENANCE FUNDAMENTALS BY CLT SERVICES © 2014
MAINTENANCE ACTIVITIES (not defined here)
 Inspection, Condition Monitoring, Compliance Test, Function Check-out, Routine
Maintenance, Overhaul, Fault Diagnostics, Fault Localisation, Restoration, Repair,
Temporary Repair, Improvement, Modification, Rebuilding, Maintenance Task Preparation,
Maintenance Schedule.
TIME RELATED TERMS (not defined here)
 Up Time, Down Time, Operating Time, Required Time, Standby Time, Idle Time,
Maintenance Time, Preventive Maintenance Time, Corrective Maintenance Time, Active
Maintenance Time, Repair Time, Active Preventive Maintenance Task Time, Logistic Delay,
Technical Delay, Operating Time to Failure, Time Between Failures, Operating Time
Between Failures, External Disabled Time, Time to Restoration, Wear-out Failure Period,
Constant Failure Period, Early Failure Period.

7. LEAN MAINTENANCE FUNDAMENTALS BY CLT SERVICES © 2014
MAINTENANCE SUPPORT AND TOOLS (not defined here)
 Maintenance Support, Line of Maintenance, Failure Analysis, Item
Register, Maintenance Record.
ECONOMIC AND TECHNICAL FACTORS (not defined here)
 Life Cycle Cost, MTBF (mean operating times between failures), Mean
Time Between Failures, Mean Repair Time, MTTR (mean time to
restoration),

8. PREVENTIVE
MAINTENANCE
CORRECTIVE
MAINTENANCE
CONDITION BASED
MAINTENANCE
PREDETERMINED
MAINTENANCE
Scheduled, on request
or continuous
Scheduled Deferred Immediate
MAINTENANCE
TYPES OF MAINTENANCE

9. LEAN MAINTENANCE FUNDAMENTALS BY CLT SERVICES © 2014
STATES AND TIMES OF AN ITEM
UP STATE DOWN STATE
Disabled State
External Disabled StateOperating StateStand by StateIdle State
Non
RequiredTime RequiredTime
Required
Time
Non Required
Time

10. TIMES

11. CRITICALITY CHART

12. LEAN MAINTENANCE FUNDAMENTALS BY CLT SERVICES © 2014
MAINTENANCE TIMES
MAINTENANCETIME
Corrective maintenance time
Logistic
delayActive corrective maintenance time
Preventive maintenance time
Logistic
delay Active preventive maintenance time
Active maintenance time
Technical
delay
Technical
delay Active PM task time Repair time

13. João Paulo Pinto, PhD MSc(Eng)
mgt@cltservices.net
CLT SERVICES
Av da República, 2491 – Sala 41, 4º Piso
4430 208 VN de Gaia
PORTUGAL
http://cltservices.net/formacao_/pos-graduacao-em-lean-maintenance/