"maintenance machine" is correct and usable in written English.
You can use it when referring to a machine used to maintain things, such as a machine that performs regular maintenance checks on other machines. For example, "The factory relies on its maintenance machine to ensure that the machinery is kept in top working condition."
Sources considered include the following: close proximity wheel/rail noise; locomotive noise; freight vehicle noise; warning signal noise; near field bridge noise; marshalling yard noise; flange squeal on tight curves; maintenance machine noise; and track machinery warning horn noise.
In addition to being a packhorse, a companion, a course expert and a psychologist, a good caddie is a tireless maintenance machine, replacing divots, raking sand traps, repairing ball marks on greens — chores many cart-riding golfers often forgo.
When good caddies weren't juggling all those roles, writes Morris, they were "a tireless maintenance machine, replacing divots, raking sand traps, and repairing ball marks on greens--all chores many cart-riding golfers often forgo".
The Roberts Drive campus will ultimately be replaced with the Technology Drive campus, located off of KY 67 (Industrial Parkway) at the EastPark industrial park, which offers numerous industrial technology degrees that often reflect the job stock in the Ashland region that include programs in industrial maintenance, machine tool technology, electrical technology and welding.
In Europe in particular, highly sophisticated maintenance machines have come into use.
Network Rail (High Speed) operates engineering, track maintenance machines, rescue locomotives, and infrastructure- and test trains.
In 2002, the company also owned three Plasser & Theurer track maintenance machines, which were built in 1980.
Each room is wheelchair accessible, and can accommodate maintenance machines such as oxygen.
There can even be significantly different lane conditions at the same alley as maintenance machines are computerized to apply different patterns to the lane with the lubricant spray.
Because of the pounding it takes on the ice, the windsled is a high-maintenance machine.
Facebook has taken on less and less the character of a social networking site and more and more that of a massive image-maintenance machine.
