Editing Maintenance (section)

{{Short description|Maintaining a device in working condition}}
{{Redirect2|Repair|repairman|home repair|Home repair}}
{{For|the Wikipedia administrative page|Wikipedia:Maintenance|selfref=y}}
{{for|other topics about maintenance}}
[[File:Bundesarchiv Bild 183-E0208-0005-001, Reparatur eines Traktors.jpg|thumb|A tractor being mechanically repaired in [[Werneuchen]], 1966]]
[[File:Field repair of aircraft engine 1915-1916.jpg|thumb|Field repair of aircraft engine (1915–1916)]]

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.<ref>{{cite web
   |title=Defense Logistics Agency
   |url=http://www.dla.mil|website=DLA.mil|access-date=5 August 2016}}</ref><ref>{{cite web
 |title=European Federation of National Maintenance Societies
 |url=http://www.efnms.org
 |website=EFNMS.org
 |quote=All actions which have the objective of retaining or restoring an item in or to a state in which it can perform its required function. These include the combination of all technical and corresponding administrative, managerial, and supervision actions.|access-date=5 August 2016}}</ref> Terms such as "predictive" or "planned" maintenance describe various cost-effective practices aimed at keeping equipment operational; these activities occur either before<ref name=DPenn.PdM>{{cite web
   |url=https://www.danielpenn.com/insights-resources/case-studies/preventive-predictive-maintenance
   |title=Defining Preventive & Predictive Maintenance
   |author=Ken Staller}}</ref> or after a potential failure.