Cleaning Cabinets; Mechanical Units; Cables - Simrad ES70 - INSTALLATION REV A Installation Manual

Simrad ES70

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
1
excessive amounts of water as the unit may not be water tight. On completion,
dry the unit thoroughly.
2 All surfaces must be inspected for signs of corrosion, 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.
3 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 has been exposed to a salt atmosphere while it was in use, it
must be thoroughly cleaned both internally and externally to prevent corrosion.
1 If the construction materials and type of unit permits, wash the unit using a
high-pressure hose and copious amounts of fresh water. Examples are the lower
parts of hull units (outside the hull) or subsea units
Ensure that all traces of mud and marine growth are removed. Use a wooden or
2
plastic scraper to remove persistent growth, barnacles etc. On completion, dry
the unit thoroughly.
Caution
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.
3 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 are
the upper parts of hull units (inside the hull) and hydraulic systems
Do not use excessive amounts of water as some components on the unit may not be
4
water tight. Wipe off the detergent with a damp cloth, then dry the unit thoroughly.
5 All surfaces must be inspected for signs of corrosion, flaking/bubbling paint, stains
etc. Damaged or suspect areas must be cleaned, prepared and preserved using the
correct preservation mediums. The mediums to be used will normally be defined in
the unit's maintenance manual.

Cables

Wipe clean all exposed cables, and check for damage. If a cable shows signs of wear or
ageing, contact Simrad for advice.
182
343522/A