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. Terms such as "predictive" or "planned" maintenance describe various cost-effective practices aimed at keeping equipment operational; these activities occur either before or after a potential failure.
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Bundesarchiv Bild 183-E0208-0005-001, Reparatur eines Traktors.jpg
For documentary purposes the German Federal Archive often retained the original image captions, whi...
C-130J Hercules cleaning.jpg
A C-130J Hercules is cleaned up in the new wash system (nicknamed the Bird Bath) at Keesler Air Forc...
Field repair of aircraft engine 1915-1916.jpg
Field repair of aircraft engine 1915-1916
Pothole repair.jpg
Mike Wollery, a maintenance and equipment staff member from the 55th Civil Engineer Squadron, remove...
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