Maintenance and troubleshooting
127
Cleaning the display
CAUTION: Take care when cleaning the displays. Do not wipe a
display screen with a dry cloth - this could scratch the screen
coating. Do not use acid, ammonia based or abrasive products.
1. Ensure the display is switched off.
2. Wipe the display with a clean, damp cloth.
3. If necessary use iso-propyl alcohol (IPA) or a mild detergent solution to
remove grease marks.
Sounder module
Routine checks
The sounder module is a sealed unit. Maintenance procedures are therefore
limited to the following periodic checks:
• Examine the cables for signs of damage, such as chafing, cuts or nicks.
• Check that the cable connectors are firmly attached.
Cleaning the module
The sounder module is a sealed unit and does not require regular cleaning.
However, if it is found to be necessary to clean the unit:
1. Ensure the display is switched off.
2. Wipe the display with a clean, damp cloth.
3. If necessary use iso-propyl alcohol (IPA) or a mild detergent solution to
remove grease marks.
Transducer
CAUTION: Harsh cleaning solvents such as acetone may damage
the transducer.
Sea growth can collect quickly on the bottom of the transducer, this can reduce
performance in just a few weeks. To prevent the build-up of sea growth, coat the
transducer with a thin layer of paint.
Use only water-based antifouling paint, or a water- based paint specifically
designed for transducers. Apply the paint with a brush.
If the transducer becomes fouled or stops working because of sand or sea growth,
use a stiff brush to clean it. The surface can be sanded with a fine-grit wet or dry
sandpaper (#320 grade or finer), but this will affect the performance of the unit
when the boat is moving at higher speeds.
81238_1.book Page 127 Thursday, September 16, 2004 2:49 PM
Summary of Contents for H6
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