Furuno DRS6A-NXT, Руководство по установке

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3. MAINTENANCE, TROUBLE SHOOTING
22
3.1 Maintenance
Regular maintenance is important for good performance. Check the points mentioned
below every 3 to 6 months to keep the antenna unit in good working order.
Check
point
Action Remedy, remarks
Check points every 3 to 6 months
Cable
Check that all cables are firmly
connected and are not damaged. • Connect a cable if it has loosened.
• Replace damaged cables.
Exposed
bolts and
nuts Check that bolts and nuts are not
corroded and are securely fas-
tened. • Replace corroded bolts.
• Tighten loosened bolts.
• Coat new bolts with marine sealant.
Radiator Dust, dirt and salt deposits on
the radiator cause signal attenu-
ation, resulting in loss of sensitiv-
ity. • Wipe radiator with a freshwater-
moistened cloth.
• The radiator is made of AES (Acry-
lonitrile-Ethylene-Styrene) resin.
Therefore, do not used gasoline,
benzene and the like to clean the ra-
diator.
• If the radiator is iced, use a wooden
or plastic headed hammer to re-
move the ice. DO NOT use a steel
hammer.
Ground
connection Check for tight connection and
rust. • Fasten if loosened.
• Remove rust if present.
Check points every year
Check the scanner unit for rust,
corrosion and chipped paint. • If the scanner unit has rusted or the
paint has chipped, paint the affected
area of the scanner unit.
• Do not paint the antenna (see figure
below). Paint on the antenna can
cause loss of sensitivity and crack
the antenna.
: Do NOT paint. : Painting area