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Caution
857-164688 / E
Cleaning cabinets
If a cabinet has been exposed to salt atmosphere while it was in
use, it must be thoroughly cleaned both internally and externally
to prevent corrosion.
• Wipe the cabinet externally using a damp cloth and a little
detergent. Do not use excessive amounts of water as the unit
may not be water tight. On completion, dry the unit
thoroughly.
• All surfaces must be inspected for signs of corrosion, eg.
flaking/bubbling paint, stains etc. Damaged or suspect areas
must be cleaned, prepared and preserved using the correct
preservation mediums for the unit. The mediums to be used
will usually be defined in the units' maintenance manual.
• Open the unit, and using a vacuum cleaner, remove all dust
etc. from the unit. Great care must be taken to ensure the
circuit boards and modules are not damaged in the process.
Mechanical units
If a mechanical unit may have been exposed to a salt
atmosphere while it was in use, it must be thoroughly cleaned
both internally and externally to prevent corrosion.
• If the construction materials and type of unit permits, wash
the unit using a high-pressure hose and copious amounts of
fresh water.
Examples:
- The lower parts of hull units (outside the hull)
- Subsea units
• Ensure that all traces of mud and marine growth are removed.
Use a wooden or plastic scraper to remove persistent growth,
barnacles etc. On completion, dry the unit thoroughly.
Do not use a high pressure hose in the vicinity of cables
or transducers. Do not use sharp or metal tools on a
transducer face.
• If the materials or type of unit prevents the use of a
high-pressure hose, wipe the unit using a cloth dampened
with water containing a little detergent.
Examples:
- The upper parts of hull units (inside the hull)
- Hydraulic systems
Appendices
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