Installation manual

Simrad PI54
14
851-165187 / Rev.A
• 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.
Caution: Do not u se 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
• 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, t hen dry the unit t horoughly.
• 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. The mediums t o 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.