Raymarine RVM-400 Series, Installation Instructions Manual, Page: 44 / 58

11.1 Routine checks
The following periodic checks should be made:
• Examine cables for signs of damage, such as chafing, cuts or nicks.
• Check that the cable connectors are firmly attached and that their locking
mechanisms are properly engaged.
Note:
Cable checks should be carried out with the power supply switched off.
Warning: High voltage
This product contains high voltage. Adjustments require
specialized service procedures and tools only available to
qualified service technicians. There are no user serviceable
parts or adjustments. The operator should never remove the
cover or attempt to service the product.
11.2 Transducer cleaning
You must clean your transducer regularly to remove organic growth. Organic
growth can build up quickly on the bottom face of your transducer; this can
impact transducer performance in a matter of weeks.
Important:
• When cleaning growth from an anti-fouled transducer, take care not
to let paint dust and other debris enter the water, as this can have an
impact on aquatic life.
• Take care not to scratch the surface of the transducer as this can impact
transducer performance.
• Do NOT use harsh cleaning solvents such as acetone as this will damage
the transducer.
Follow the guidance below to clean growth from your transducer:
• Use a soft cloth and a mild household cleaning detergent to clean mild
growth build up.
• Use a scouring pad, such as a green Scotch Brite™ pad and a mild
household cleaning detergent to clean moderate growth build up.
• You may need to use a fine grade wet and dry paper and a mild household
cleaning detergent to clean severe build up.
11.3 Bridging material removal
On metal hulled vessels, to prevent galvanic corrosion, the metal parts of your
stainless steel transducer must NOT touch the hull. The included high speed
nose cone and isolation parts ensure a gap exists between the two surfaces.
When cleaning your transducer, particular attention must be given to the
edge of the high speed nose cone.
Ensure that there is no growth or
material attached that bridges the gap between the metal part of the
transducer and a metal hull.
1. Metal part of transducer.
2. High speed nose cone.
3. Metal hull.
11.4 Re-applying anti-fouling paint
If you have applied anti-fouling paint to your transducer, it is important to
re-apply it at least every 6 months, to maintain effectiveness.
Follow the instructions below to re-apply anti-fouling paint.
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