Four Codes That Every EAM/CMMS Should Have

EAM/CMMS Codes

1. EAM/CMMS Work Order Groups & Type Codes

Work Order Group and Work Order Type Codes indicate the nature of the maintenance work. The Work Order Group Code breaks work down into its larger segments. The Work Order Type Code is more granular and can be applied at the maintenance activity level.

These codes are applied to a work order when it is approved. The codes are important for sorting the work order backlog during the planning and scheduling processes, and then again later for management reporting of historical information. The following codes are based on international standards.

WO GroupsWO Type CodesDescription / UseExamples
Corrective MaintenanceCM-ReplaceReplacement of item by new or refurbished item of same type and makeReplacement of a worn-out bearing
CM-RepairManual maintenance action performed to restore item to original appearance or stateRepack, weld, plug, reconnect, remake, etc.
CM-AdjustBringing any out-of-tolerance condition into toleranceAlign, set and reset, calibrate, balance, etc.
CM-RefitMinor repair / servicing activity to return item to an acceptable appearance, internal or externalPolish, clean, grind, paint, coat, lube, oil change, etc.
CM-TroubleshootCause of issue is investigated but no maintenance action is performed, or action is deferred. Able to regain function by simple actions, e.g. restart or resettingRestart, resetting, no maintenance action, etc.
CM-OverhaulMajor overhaul of a piece of equipmentComprehensive inspection / overhaul with extensive disassembly and replacement of items as specified or required
Preventive MaintenancePM-InspectionPeriodic inspection / check: a careful scrutiny of an item carried out with or without dismantling, normally by use of sensesAll types of general checks. Includes minor servicing as part of the inspection task.
PM-Service TasksPeriodic service tasks (normally no dismantling of item)Cleaning, change of filters on a monthly basis, adjustments, calibrations on a set schedule
PM-TestPeriodic test of function of performanceFunction test of gas detector, fire alarms, test of flow meter
Predictive MaintenancePDM-ThermographyUse of specific technologies to monitor the condition of the equipmentPeriodic checks using thermography technologies to measure variables related to equipment condition
PDM-UltrasonicUse of specific technologies to monitor the condition of the equipmentPeriodic checks using ultrasonic technologies to measure variables related to equipment condition
PDM-Oil AnalysisUse of specific technologies to monitor the condition of the equipmentPeriodic checks using oil analysis technologies to measure variables related to equipment condition
PDM-VibrationUse of specific technologies to monitor the condition of the equipmentPeriodic checks using vibration technologies to measure variables related to equipment condition
Project MaintenancePRJ-ModifyReplace, renew, improve, or change item (or part of item) with item / part of a different type, make, material, or designInstall a filter with smaller mesh diameter, replace a lubrication oil pump with another type, reconfigure, etc.
Service MaintenanceSM-MinorUsed to track minor service tasksHanging paper towel dispenser, hanging white board, mowing, moving furniture, etc.
StandingST-MeetingUsed to capture technicians attending meetings. Set up as a standing work order.Technicians attending departmental or plant-wide meetings.
ST-TrainingUsed to track technicians attending training, seminars, etc. Set up as a standing work order.Technicians attending skills training sessions.
Asset Reliability ProgramARP-Reliability ReviewUsed to capture reliability review and analysis workRoot Cause Analysis (RCA), Failure Mode and Effects Analysis (FMEA)

2. EAM/CMMS Work Delay Codes

Work Delay Codes are used by the Maintenance Technician to indicate the nature of work delays encountered while working on a job.

A Maintenance Planner’s primary responsibility is to identify sources of delay for the Maintenance Technician and eliminate them. To that end, the Maintenance Planner uses feedback from the Maintenance Technician and the Work Delay Codes to improve future maintenance planning efforts. Please see the following Work Delay Codes.

1. Safety2. Tools3. Job Plan4. Materials
AHot WorkALateADrawings MissingALate Delivery
BConfined SpaceBNot WorkingBDrawings WrongBMissing Parts
CHousekeepingCWrong TypeCParts List NeededCWrong Parts
DSpecial PPEDNot AvailableDSequence IncorrectDDamaged
EMSDS  EInstructions IncompleteENo Parts Available
FLock Out Tag Out      
5. Equipment6. Personnel7. Environment
ANot ReadyANot EnoughAWeather
BNot RunningBLack of TrainingBClear Out Hazardous Gases
CRunningCTrade UnavailableCHazardous Liquid
DNot ClearedDInterruptedDPower Failure

3. EAM/CMMS RETURN TO STOREROOM CODES

When materials are returned to the storeroom, a return transaction must be performed. This helps ensure the inventory balances remain correct. The returns must be logged and analyzed by reason codes to facilitate tracking of material return reasons (causes).

This information should be tracked by MRO Materials Management, discussed during MRO Materials Team meetings, and used to improve functional process areas. Return to storeroom information must also be passed to the Maintenance Planner to assist in planning future job material requirements. Please see the following Return to Storeroom codes.

CodeDefinition
UN-DNNUnused / Did Not Need
UN-JCUnused / Job Cancelled
UN-RMRUnused / Received More than Requested
UN-WIDUnused / Wrong Item Delivered
UN-WIRUnused / Wrong Item Requested
UN-DDUnused / Defective or Damaged
UN-SCUnused / Shop Clean-up
US-SUsed / Serviceable
US-RUsed / Repairable
US-FUWUsed / Failed Under Warranty
RE-IHRepaired In-House

4. EAM/CMMS ASSET CRITICALITY CODES

Asset Criticality Codes identify how critical the asset is to the organization. Not all of your physical assets are to be treated with the same level of care and attention. Some assets are more important than others. Assigning an Asset Criticality Code helps to make this distinction.

Asset Criticality Codes are applied to the asset record when it is set up. These codes are important for sorting the work order backlog and identifying critical spare parts. Asset Criticality Codes can also be used in Key Performance Indicator (KPI) reporting (e.g., % of PMs set up on critical assets).

There are more complex methods to determine asset criticality, but they require time and resources. If you need a quick and easy place to start, then see the codes below. Asset Criticality Codes highlighted in green are considered critical.

CodeDefinitionExamples
10Safety Protection EquipmentLife safety items, such as fire prevention/protection, emergency generators, and eyewash stations.
9Environmental Protection EquipmentAny equipment that directly aides in the removal, limitation or control of pollutants of any form.
8Facility UtilityKey assets that deliver basic utilities (e.g., water, gas, electricity)
7Process Equipment Non-SparedKey assets that deliver an energy within a process that if fail, the process will shut down because a lack of redundancy, or spare.
6Process Equipment SparedKey assets that deliver an energy within a process that if fail, the process will not shut down because of redundancy, or spare.
5Support Equipment Non-SparedAsset without built in redundancy, or spare that are used in maintaining Process, Utility, Safety or Environmental asset types.
4Support Equipment SparedAsset with built in redundancy, or spare that are used in maintaining Process, Utility, Safety or Environmental asset types.
3Site FacilitiesSpatial assets that work directly relating to production of a good or delivery of a service, such as a manufacturing control room.
2Administrative FacilitiesSpatial assets that support areas and teams that perform actions relating to production or maintenance of assets.
1GroundsThe assets within the site’s landscaping and maintainable outdoor areas

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