Simrad SP60 - REV D, Installation Manual

Page: 34 / 218

Simrad SP60
18
851-164574 / C
Cleaning cabinets
If the unit may have 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 the 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.
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.
•
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.
Example:
- The upper parts of hull units (inside the hull)
- Hydraulic systems
•
Do not use excessive amounts of water as some components on
the unit may not be water tight. Wipe off the detergent with a
damp cloth, then dry the unit thoroughly.