Etymologically, the term maintenance comes from the word “maintain” and the suffix “ance”. By simple definition of the dictionary, it is the actions that aim to maintain something in good condition.
A first normative definition of maintenance was given by AFNOR en 1994 (Standard NFX 60-010):
” all actions for maintaining or restoring property in a specified state or in a position to provide a specific service “.
Since 2001, it has been replaced by a new definition, now European (NF EN 13306 X 60-319):
“All technical, administrative and management actions during the life cycle of a property, intended to maintain or restore it in a state in which it may perform the required function. “
In 2002, Afnor in the standard FDX 60-000 redefined maintenance as well (definition shared by EFNMS – European Federation of National maintenance Societies):
“All technical, administrative and management actions during the life cycle of a property, intended to maintain or restore it in a state in which it can perform the required function.” “
Different types of maintenance
Forecast or planned Maintenance
The standard Afnor NF en 13306 X60-319, ” conditional maintenance performed according to the extrapolated forecasts of the analysis and evaluation of significant parameters of the degradation of the property “.
The standard Afnor NF EN 13306 X60-319, ” preventive maintenance performed at predetermined time intervals or according to a defined number of units of use but without prior checking of the condition of the property “.
The standard Afnor NF EN 13306 X60-319, ” preventive maintenance based on monitoring the functioning of the property and/or significant parameters of this operation and incorporating the actions resulting therefrom“.
NOTE: “operation and parameter monitoring can be performed on a schedule, or on demand or on a continuous basis .”
The Afnor FD X60-000 standard defines palliative maintenance as ” a corrective maintenance action designed to enable a property to perform temporarily all or part of a required function “. Commonly referred to as ” troubleshooting “, palliative maintenance is mainly made up of temporary actions which must be followed by curative actions.
The standard Afnor FD X 60-000 defines curative maintenance as a corrective maintenance Action designed to restore property in a specified state to enable it to perform a required function. The result of the actions carried out must be of a permanent nature.
The standard Afnor FD X 60-000 defines palliative maintenance as ” maintenance performed after fault detection and intended to deliver a property in a state in which it can perform a required function “.
The 5 maintenance levels according to the standard
The first 2 levels for self-maintenance:
Simple adjustments, simple controls and inspections, exchange of consumables/accessories and safe cleaning operation without special tools. The operator, adjuster… will rely on standards of self-maintenance to operate.
Standard exchange of consumables, lubrication, cleaning requiring a tooling, a dismantling of protection and a clearance. The line adjuster/leader will rely on clear and detailed maintenance instructions.
The last 3 levels for scheduled maintenance
Change of functional sub-assemblies requiring adjustments, calibration of measuring devices, tools and a clearance. Most often these operations can be done on site by the qualified maintenance technician.
Upgrading of functional sub-assemblies requiring adjustments, calibration of measuring devices, in a workshop equipped with the necessary means and by a specialist technician.
Renovation, reconstruction or major improvement works in a workshop equipped with specific means. Most often these operations are carried out by the manufacturer itself.
Standard NF en 13306 X 60-319
Standard FD X 60-000