Maintenance
Maintaining a device in working condition / From Wikipedia, the free encyclopedia
"Repair" and "repairman" redirect here. For home repair, see Home repair.
For the Wikipedia administrative page, see Wikipedia:Maintenance.
For other topics about maintenance, see Maintenance (disambiguation).
The technical meaning of maintenance involves functional checks, servicing, repairing or replacing of necessary devices, equipment, machinery, building infrastructure, and supporting utilities in industrial, business, and residential installations.[1][2] Over time, this has come to include multiple wordings that describe various cost-effective practices to keep equipment operational; these activities occur either before[3] or after a failure.