A waterborne machine that removes unwanted silt accumulations from the bottom of a waterway.
Related Terms |
DEPOSITS
Oil-insoluble materials that result from oxidation and decomposition of lube oil and contamination from external sources and engine blow-by. These can settle out on machine or engine parts. Examples are sludge, varnish, lacquer and carbon.
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EROSION
The progressive removal of a machine surface by cavitation or by particle impingement at high velocities.
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CATASTROPHIC FAILURE
Sudden, unexpected failure of a machine resulting in considerable cost and downtime.
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BREAKDOWN MAINTENANCE
Maintenance performed after a machine has failed to return it to an operating state.
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FERROGRAPHY
An analytical method of assessing machine health by quantifying and examining ferrous wear particles suspended in the lubricant or hydraulic fluid.
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DELAMINATION WEAR
A complex wear process where a machine surface is peeled away or otherwise removed by forces of another surface acting on it in a sliding motion.
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SHELL PLATING
The plates forming the outer side and bottom skin of the hull
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FARDAGE
A wood placed in bottom of ship to keep cargo dry
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HOLDING GROUND
The bottom ground of an anchorage. The expression is usually used with a modifying adjective to indicate the quality of the holding power of the material constituting the bottom
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PREVENTIVE MAINTENANCE
Maintenance performed according to a fixed schedule involving the routine repair and replacement of machine parts and components.
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