Maintenance performed after a machine has failed to return it to an operating state.


Related Terms

MILITARY ENGINEERING

Science, art, and practice involved in design and construction of defensive and offensive military works as well as construction and maintenance of transportation systems.

MASTER MECHANIC

The supervisor, as at the mine, in charge of the maintenance and installation of equipment.

MARINE ENGINEERING

The design, construction, installation, operation, and maintenance of main power plants, as well as the associated auxiliary machinery and equipment, for the propulsion of ships.

MAINTENANCE VEHICLE

Vehicle used for carrying parts, equipment, and personnel for maintenance or evacuation of vehicles.

MAINTENANCE

The upkeep of industrial facilities and equipment.

MAINTAINABILITY

1. The ability of equipment to meet operational objectives with a minimum expenditure of maintenance effort under operational environmental conditions in which scheduled and unscheduled maintenance is performed. 2. Quantitatively, the probability that an item will be restored to specified conditions within a given period of time when maintenance action is performed in accordance with prescribed procedures and resources.

ISOLATE

1. To separate two portions of a process system by means of valving or line blanks; used as safety measure during maintenance or repair, or to redirect process flows. 2. To disconnect a circuit or piece of equipment.

INFORMATION SYSTEMS ENGINEERING

The discipline concerned with the design, development, testing, and maintenance of information systems.

PREDICTIVE MAINTENANCE

A type of condition-based maintenance emphasizing early prediction of failure using non-destructive techniques such as vibration analysis, thermography, and wear debris analysis.

PROACTIVE MAINTENANCE

A type of condition-based maintenance emphasizing the routine detection and correction of root cause conditions that would otherwise lead to failure. Such root causes as high lubricant contaminant, alignment and balance are among the most critical.

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